Best selling products

Sparco EVO Carbon Fiber Racing Seats As Sparco's most well known competition seat, it was a no-brainer to provide the refreshed Evo with Sparco's QRT Ultra-Light Technology. Not content to leave well enough alone, Sparco went a step further by improving the overall fit and feel of the Sparco Evo Carbon Fiber. Starting with the shoulder bolsters, Sparco trimmed down the width to help fitment into smaller cars without sacrificing support. Sparco then lowered the side bolsters just enough to improve ingress/egress into/out of the car. Finally, the shoulder belt guides have been raised for improved harness fit in all drivers. With small sports cars in mind (the Sparco Evo Carbon Fiber fits perfectly in a Miata!), the Sparco Evo Carbon Fiber is sure be a mainstay at the track! The EVO Carbon is the all-carbon fiber version of the EVO QRT. It is constructed with pre-preg aerospace grade carbon fiber, also known as dry carbon. The Sparco EVO Carbon is one of the lightest carbon fiber seats on the market. It weighs less than 10lbs (shell only) and 12lbs (with padding and cover). The EVO Carbon is has excellent fitment into smaller cockpits. The EVO series of seats feature the most back angle rake of all Sparco seats for a very comfortable driving position. It also has high grip material in strategic places such as the shoulder bolsters and seat bottom to aid in lateral support. The EVO Carbon is FIA 8859-1999 approved. EVO QRT TECHNOLOGY Ultralight pre-preg carbon fiber shell Excellent fitment into small vehicle cockpits Three shell sizes: Medium, Large, or XL Excellent ergonomics Fire-retardant fabric Special non-slip fabric FIA 8859-1999 approved SPARCO EVO RACE SEAT SIZING The Sparco EVO series is among the most versatile competition seats we carry, available in the following four sizes to ensure proper fitment: EVO Carbon – Medium (up to 34” waist) EVO L Carbon – Large (up to 36” waist) EVO XL Carbon– X-Large (38” waist) DIMENSIONS

AiM Memory Module for AiM Devices Use SD memory cards1 effortlessly to keep your driver data more organized. This unit allows you to easily swap memory cards in and out to view driver data more efficiently between stints. Using the AiM Memory Module is really simple: just connect the Module to your device and data will be saved simultaneously both in the data-logger and on the SD card. No configuration is needed. The SD card can be removed and replaced even during pit stops, while the car engine is still on, making it extremely fast to get data during endurance races or long tests, when the time in the paddock is really limited. When the session is over, all you need to do is move the SD card from the AiM Memory Module to your PC and download the data using RaceStudio 3. The Module features a front LED showing its recording/updating status. The AiM Memory Module can support up to 32GB SD cards. AiM MEMORY MODULE FOR AiM DEVICES DETAILS Manufacturer: AiM Sports Manufacturer part no: X08MMD040 Cable length: 40cm (16 in.) SD card 1: up to 32GB Power consumption: 50 mA Dimensions: 55.5 x 78.3 x 18mm (2.2 x 3.1 x 0.7 in.) Weight: 103g (3.5 oz.) Waterproof: IP65 CONNECTS VIA CAN BUS TO THESE AiM DEVICES MXL2 MXG (1st gen) MXS (1st gen) EVO4S EVO5S MXT 1.3 MXG 1.3 MXP 1.3 MXS 1.3 PDM08 PDM32 1 SD card is not included

Chillout Cypher Pro Ultra-Lite Carbon Fiber Micro Cooler Introducing the Ultra-Lite Carbon Fiber Cypher Pro Micro Cooler - the compact powerhouse for Formula-sized cooling needs. Weighing a mere 4.7lb, this cooler is ideal for small cabins/cockpits and weight-sensitive race applications, ensuring you stay cool, focused, and in control. Its dual 175 CFM fans guarantee optimum performance, while the carbon fiber mounting plate adds to its lightweight design. Ultra-Lightweight: The Cypher weighs just 4.7 lbs, featuring a carbon fiber mounting plate for maximum efficiency. Compact & Versatile: With dimensions of 7.87" x 4.09" x 6.90", this cooler can be flexibly mounted in various locations, offering unparalleled adaptability and performance. Effortless Control: The Cypher includes a user-friendly remote, making it easy to adjust settings at your convenience. Powerful Cooling:Equipped with dual internal brushless fans, the Cypher effectively moves 350 CFM of air, eliminating the need for an inline blower. Enhance your racing experience with the Ultra-Lite Carbon Fiber Cypher Pro Micro Cooler - your ultimate solution for staying cool and in control on the track. The Chillout Cypher Pro Ultra Light cooling system is designed for small cockpit race cars or teams needing to be at the lowest possible scale weight while providing driver comfort. CHILLOUT CYPHER PRO ULTRA-LIGHT KIT DETAILS: Manufacturer: Chillout Manufacturer part number: CO-CYP1 Size: 7.87” x 4.09” x 6.90” Weight: 5.7lbs Input voltage: 10.6 - 14.2 Mounting plate material: Carbon fiber  CHILLOUT CYPHER PRO ULTRA-LIGHT KIT INCLUDES: 1x In-line voltage converter. 1x Carbon Fiber Mounting Plate. 1x Carbon Fiber Plenum 1x Wiring harness. 1x fill/priming bottle  1x Wired remote  36 inches of coolant tubes 1x External fan wiring harness. This is used to power a 12 volt external fan when eliminating the top fans and utilizing the carbon plenum. This is an option in place of the dual 175 cfm fans allowing a 3 inch duct to permanently attach in their place. When using this duct, a 3 inch 275 CFM fan (Uber3) is required for operation.  LIGHTWEIGHT DESIGN At a featherweight 5.7lbs, the carbon fiber intensive Cypher is the lightest Chillout cooler to date. Constructed using the lightest, most advanced materials, the 5.7lbs weight also includes the carbon fiber quick-release mounting plate.  SMALL FOR A REASON Crew chiefs always need more space. The Chillout Cypher Pro Ultra-Lite measures 7.87” x 4.09” x 6.90” to increase your mounting location options. DASH MOUNTED MULTI FUNCTION REMOTE The easy to install remote control allows you to change your shirt temperature, Now control your remote mounted Chillout Cypher while strapped into your race seat. DUAL 175 CFM FANS Utilizing two 175 cfm internal brushless fan motors you will achieve 350 cfm of cooling air. This eliminates the need for an external blower system and the smallest footprint inside your race car.

Use This AiM Solo / Solo DL Replacement Mount Plate Kit To Mount Your AiM Solo into different vehicles easily. The AiM Solo Replacement Mount Plate includes all hardware and is a Genuine AiM Product. Use This AiM Solo / Solo DL Replacement Mount Plate Kit To Mount Your AiM Solo into different vehicles easily. The AiM Solo Replacement Mount Plate includes all hardware and is a Genuine AiM Product. The magnets on the back of the AiM Solo lap timer makes it easy to move from car to car, but once you're in the second car, you need an extra mounting plate for the magnets to stick to. This is the same steel mounting plate as included with the Solo and SoloDL. It has countersunk holes for mounting screws and tabs to keep the Solo from sliding off under high shock loads. Includes 2 countersunk 4x0.7mm socket-head screws (to fit the countersunk holes in the plate) and 2 3x0.5mm socket-head cap screws with washers (to fit the threaded inserts in the back of the Solo). AiM Solo Replacement Mount Bracket (Old Solo & Solo DL) Details: Manufacturer: AiM Manufacturer part number: DNKTPFSOL5 Manufacturer alternate part number: MC-574 Fits AiM Solo: Yes Fits AiM SoloDL: Yes Hardware included: Yes Fits AiM Solo2: No FIts AiM Solo2 DL: No Color: Black

CALPIER REBUILD KIT FOR ALFA GUILIA CCM FRONT 28mm/32mm/38mm GiroDisc CCRK1-209 front caliper rebuild kit for Alfa Guilia CCM front caliper with 28mm/32mm/38mm seals. Track days can be especially hard on the piston seals and dust boots in your brake calipers. Heat, in particular, will do a number on them. (Titanium heat shields behind your pads can help with that.) This kit is put together from the highest-quality components to rebuild a brake caliper back to like-new condition. One kit is required per caliper (we suggest doing them both as long as you're doing it). Once you rebuild them, get the Ti heat shields as well and lengthen the interval between rebuilds. The shields and seals are available as a kit for convenience (and a bit of savings). We only source superior quality brake components (brakes for track use are serious business); some kits don't take it as seriously. Any questions give us a call, we're happy to help!

AiM - The New Steering Wheel SW4 is one of the most versatile steering wheels in the market,compatible with a long list of ECU protocols, to meet any driver’s need. Choose your size Compatible with more than 2,000 ECU protocolsSW4 is one of the most versatile steering wheels in the market, with a long list of compatible ECU protocols, to meet any driver’s need. Freely configurable pagesThe high contrast TFT display offers a wide range of possible graphic data layouts,showing the driver all the information he needs in real time. Individually configurable pushbuttons!8 completely configurable buttons and 2 additional free contact normally open buttons.Rotary switchesSW4 has 3 completely configurable rotary switches.One by one configurable LEDs, Shift lights can be configured for each gear, choosing LED color and RPM threshold values which will turn it on/off.The 4 Alarms LEDs are configurable too. Clutch and Paddle shifts (optional)SW4 can be upgraded adding paddle shifts and clutch shifts.

AiM Power Distribution Module PDM32 Kit w/ 6" Display (Race Version) The AiM PDM32 Power Distribution Module is designed to distribute power to multiple circuits on your vehicle, replacing traditional fuse & relay systems. The 6-inch TFT display puts an enormous amount of information arranged neatly before you. It does not have traditional street car icons (for battery, parking brake, windshield wipers, etc.) AiM Power Distribution Module PDM32 Kit w/ 6" Display - No Icons Details Manufacturer: AiM Sports Manufacturer Part Number: XC1PDM32D06-C2NI Includes 6" display w/o icons: Yes Includes choice of GPS module: Yes 28 high side outputs Four half-bridge outputs Replaces traditional fuse & relay systems AiM PDMs are housed in an anodized billet aluminum case are designed specifically for the rigors of motorsport, and include a complete professional data logger & internal dash controller. Using an AiM PDM at the center of vehicle electronics greatly simplifies your wiring harness and electronics installation while providing much more control. AiM PDM32 Has An Expansive Feature Set AiM's PDM32 also offers some interesting features that you wouldn't necessarily expect to see in a traditional distribution module, such as: ECU connection for logging data, eliminating the need to add another data logging unit to your car GPS module compatibility for lap timing (GPS module sold separately) Dash controller for managing the 6" or 10" PDM dash displays (displays available separately) 9-axis EMU platform Mirror camera control for adding a reverse camera to the PDM dash display (camera & display available separately) The PDM32 offers four different power output configurations: 4 rated up to 20 A (high power) 12 rated up to 15 A (mid power) 12 rated up to 10 A (low power) 4 rated up to 35 A (Half Bridge) Protected for over voltage, under voltage, over current, & over temperature Total max current: 120 A Each output provides status feedback for open circuit, short circuit, high temperature, over current, under voltage, & over voltage. Inrush current, number of fault retries, & time between retries are all definable. All the outputs are configurable as PWM (pulse-width modulation) and allow soft start/stop. For every output, a multicolor LED shows the status: Enabled/disabled Activated or not Fault An elegant visual interface allows flexible and powerful configuration for every power output. Some "black boxes" are available for simplifying the configuration. For example, the Wiper may be managed by the LIN connection or using the Half Bridges. The AiM PDM32 features the following input channels: Analog/digital: 8 Only digital: 4 Speed: 2 If configured as Analog inputs, it is possible to activate an internal 2K Ohm resistor for connecting most of the sensors directly. If configured as Digital inputs, it is possible to activate a 10 kΩ Pull Up or a 10 kΩ Pull Down. The PDM32 supports the latest 6" & 10" TFT displays, fully configurable with Race Studio 3. It also features two analog camera inputs that allow you to swap your display into a mirror camera with the press of a button or through configurable event logic- reverse gear being the most common option. Use And Record Data From Multiple Sources The AiM PDM32 receives, uses, & records data from the following sources: ECU (more than 1,000 protocols available) Digital/analog inputs Internal 9-axis EMU GPS position & lap time Expansions Push buttons on the RIO02 module or any commercial CAN keypad, with simple configurability of CAN protocols Power outputs current levels & status Other user-defined math channels AiM PDMs come with 4,000 tracks in their database and automatically select the one you are driving on, in order to calculate Lap Time when you pass the start/finish line. An internal data-logger is available, capable of recording all the analog inputs, digital inputs, ECU channels, GPS values, currents, & status of all the power outputs.

AiM SmartyCam GP HD Replacement Lens 67º AiM AiM SmartyCam GP HD Replacement Lens with a 67º field-of-view. A 67º FOV is typically used inside production cars, GT, and sports cars. This kit includes a new genuine AiM 67º lens and special weather- and harmonic vibration-resistant O-ring. AiM SmartyCam GP HD Replacement Lens 67 Details Manufacturer: AiM Sports Manufacturer part number: X96KVBGPHD6 Degree of field-of-view: 67º O-ring included: Yes

AiM Magnetic Wheel Speed Sensor - 712 Lead The AiM Magnetic Wheel Speed Sensor with a 712 lead is designed to deliver precise wheel speed measurements for data acquisition systems. Built with durability in mind, this sensor is ideal for motorsports applications where accuracy and reliability are critical. Its magnetic pickup design ensures dependable readings even in demanding track environments. Reliable Wheel Speed Data for Accurate Analysis This AiM sensor connects seamlessly with AiM data loggers and dashes, providing accurate wheel speed information crucial for lap timing, telemetry, and performance analysis. Whether you're fine-tuning your setup or analyzing post-session data, this sensor is a must-have for extracting maximum performance from your vehicle. Features: • Precision magnetic wheel speed pickup compatible with AiM systems• 712 lead connector for secure and reliable integration• Rugged motorsport-grade construction for track use• Provides critical data for telemetry and driver coaching• Easy installation and plug-and-play connectivity with AiM devices AiM Magnetic Wheel Speed Sensor - 712 Lead FAQs: What AiM devices is this sensor compatible with? This sensor works with AiM loggers, dashes, and data systems that support a magnetic wheel speed input with a 712 lead connector. How is the AiM Magnetic Wheel Speed Sensor installed? It mounts near a wheel or axle with a magnetic target. It connects directly to your AiM system using the included 712 lead connector. Is this sensor suitable for all motorsports applications? Yes, it is built for both amateur and professional racing use, including cars, bikes, and karting setups. Why is wheel speed data important? Accurate wheel speed information is critical for traction control tuning, lap analysis, and optimizing performance during data review. Upgrade your AiM data system with the precision and reliability of the AiM Magnetic Wheel Speed Sensor - 712 Lead. Order today from Discovery Parts and get the performance data you need to dominate at the track!

GiroDisc Magic Pads Girodisc's "Magic Pads" offer a solution to common issues with factory brake pads such as squeaking, excessive dust, and high costs. These pads produce less dust compared to typical factory and performance pads, reducing the need for frequent wheel cleaning. Moreover, they provide excellent initial bite, a feature often lacking in more affordable pads. However, what truly sets our pads apart is their ability to effectively address brake noise problems, earning them the reputation of being a "silver bullet" solution. Crafted from a semi-metallic composition, Magic Pads are gentle on both rotors and your budget. When transitioning between different pad compounds, we recommend replacing all pads in the car simultaneously. Each set of Magic Pads includes pre-installed anti-noise shields at no extra cost. Should you have any inquiries, feel free to reach out to us – we're here to assist you!

AiM K8 PDM CAN-Configurable Keypad (8-Button) PDM button inserts are sold separately here This is a CAN-programmable 8-button panel compatible with AiM PDM systems (PDM08 and PDM32). This keypad comes pre-configured for use with AiM protocols and is ready to be programmed through AiM's RaceStudio software. The buttons measure 15mm size and the overall panel size is 127.4 x 71.4 x 24 mm (5.0" x 2.8" x 0.9"). AiM K8 PDM CAN-Configurable Keypad (8-Button) Details Manufacturer: AiM Sports Manufacturer part number: X08KPK8 Weight: 150g (5.2 oz.) Connector: AiM 5-pin Binder 712 Supply voltage: 12-24Vdc, Nominal 8-32Vdc Standy current: <50mA Communications BUS: RS485, CANopen J1939 Operating temperature: -40ºC to 70ºC Thermal shock: -40ºC to 85ºC Salt spray standard: ASTMB117 Chemical resistance: dirt, engine cleaner, isopropyl alcohol, multi-purpose cleaner, muriatic acid Waterproof rating: IP67 Each button's function and backlight can be programmed using AiM Race Studio software. Each button can be set up as momentary, toggle, or multi-position. Once a button is programmed, install the button insert (sold separately) corresponding to its function. The rear connector is a motorsport-grade AiM 5-pin Binder 712 female connector pinned-out for AiM CAN+, GND, Vb, AiM CAN-, and Vbext. AiM K8 Configurable Keypad Common Features Reconfigurable buttons Programmable RGB LEDs LED backlit rings and icons Momentary, toggle, and multi-status Two blinking mode Wide range of inserts CAN-Bus system compatible Vertical or horizontal mount Status restore option

AiM GS-Dash and EVO4S Data Logger Dash Display w/ GPS This Aim GS-Dash and EVO4S Data Logger and Racing Dash Display Kit has been designed to put data sampled by the new generation of AiM data-loggers, the EVO4S, right at your fingertips. That includes all data coming from your vehicle’s ECU, from the internal accelerometers and the GPS module, and from any custom sensors you have. Easy and Immediate Readability In its compact structure, AiM GS-Dash & EVO4S Racing Data Logger Kit features a wide 268x128 pixel display with excellent readability. The screen can be backlighted in one of the seven available colors and the incorporated light sensor keeps brightness and contrast ideal in all light conditions. Data can be arranged on up to nine separate pages that can easily be run through using the metallic buttons on the GS-Dash. Recall Your Session Highlights A key-data summary is available at the end of each session where you can also see a list of all the laps of the sessions, with their times, min/max speed and min/max RPM's. Configure Your LEDs One by One Five RGB shift lights can be configured for each gear, choosing LED color and RPM threshold values which will turn it on/off. Alarms are managed in a very flexible way: you can choose the situation that generates the alarm, the LED behavior (blinking frequency and color) when the alarm appears and the conditions for its switch-off. A warning message can also be shown. Easy Configuration Configuration of shift lights, alarms, and customized data pages is intuitive and immediate using the dedicated Race Studio 3 software. Shift lights and alarms must be configured using the RaceStudio 3 configuration panel. Data is viewed in customizable pages. With few clicks you can enable up to eight custom pages: you decide where to show the desired variables (up to four on each page) from those sampled by the ECU, the accelerometers and the GPS values from EVO4S. Configuration can be done either using RaceStudio 3 or via keyboard. Compact and Durable Chassis Its small dimensions make it particularly suitable for small cockpit installation (e.g., motorcycles or formula cars). Manufactured from anodized aluminum with an edge-to-edge glass screen and metallic push-buttons, the GS-Dash is robust and fully waterproof.

Acura NSX (2016-present) Alfa Romeo Giulia Quadrifoglio, converted to iron rotors Audi C7 RS6 & RS7 Chevrolet Camaro ZL1 (5th & 6th Gen) Chevrolet Camaro Z/28 (5th Gen) Chevrolet C7 Corvette Z06 & Grand Sport (all) McLaren MP4-12C, 570S & 650S Mercedes-AMG GT S/C/R with OEM iron rotors The Girodisc S/S or "street/strip" pads represent the ultimate in high performance brake pads. The semi-metallic compound maintains a consistent coefficient of friction from 0 to 1000 degrees making them an ideal option for people that are looking for a dual purpose pad that will work well on both the street and the race track. The formula has very little compressibility ensuring a very firm pedal and immediate bite which has made the S/S pads a favorite among people who autocross and those who demand the most out of their street cars. Inevitably these will dust more than our Magic pads however with the addition of our anti-noise shims that come on every set of pads they will not make any noise if they are bed in properly.

Girodisc Alfa Romeo Giulia Quadrifoglio with CCM Rotors - Rear Rotors The Girodisc system is a direct replacement for the OE disc. No modifications are necessary. The disc will bolt directly to the car and work with OE calipers perfectly. By upgrading your brakes with lightweight high performance replacements as opposed to a big brake kit, your factory bias is maintained as well as your ABS efficiency. This reduction in rotational and unsprung weight allows for quicker acceleration and suspension response. Girodisc Alfa Romeo Giulia Quadrifoglio with oem CCM rotors Details: Manufacturer: Giro Disc Manufacturer Part Number: A2-209 Surface: Slotted Material: Steel Intended for Street/Track Use: Yes For Use with Stock Calipers: Yes Rotor Construction: Vented Rotor Style: Slotted surface Rotor Material: Iron Rotor Finish: Black E-coat Quantity: Sold pair (one axle set) Girodisc Alfa Romeo Giulia Quadrifoglio with OEM CCM rotors - Rear Rotors Fitment: Alfa Romeo Giulia Quadrifoglio 2016+ Girodisc Advantages: GiroDisc brake kits are seen at every track weekend on very exotic and extreme track cars. What made GiroDisc owners leave their OEM rotors and upgrade to a 2 piece GiroDisc kit? Less Rotating Mass via 2 piece design Lightweight 6061-T6 Aluminum Hat Grade 12 floating hardware to allow the rotor to grow when heated Curved vane design creates a cooler rotor Significant cost reduction compared to OEM GiroDisc Rotor Hat: The GiroDisc rear central is manufactured using aircraft grade 6061-T6 aluminum. Less weight creates a huge advantage in acceleration and braking. Anyone who has spent the money for a lightweight double disk clutch kit with aluminum flywheel knows the importance of rotating mass. Using a lightweight rotor kit allows the brakes to decelerate the vehicle not the rotor. GiroDisc Floating Rotor Ring: Quality hi-carbon cast iron is the foundation of every GiroDisc brake rotor. Every rotor ring is made carefully in house at the GiroDisc factory in Washington state. The GiroDisc rotor utilizes a curved vane design that was originally developed in racing to act as a centrifugal air pump to force cooling air from the center of the rotor ring to the outside. This principle is similar to what is know as a squirrel cage fan design. By having impellers (vanes) between the two rotor faces, the air is moved radially, from the center outward, changing the direction of the airflow and increasing velocity. This design is mechanically strong, reliable very effective. Chances are your street cars heater blower motor and home furnace utilize GiroDisc Rotor Ring Hardware: The GiroDisc rotor ring and light-wight aluminum hat have a floating mount system, which utilizes 8 or 10 high strength alloy steel drive pins, manufactured by Girodisc in the USA to our own specifications and cadmium plated for a long lasting corrosion resistance. These drive pins take the load from braking actions while maintaining the axial and radial float between the hat and disc. The drive pins are secured by grade 12 cap screws with hardened washers. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise spring washers on the rotor side which allow the rotor to grow with heat expansion but eliminate the rattle and noise associated with floating rotors. This float also allows the rotor to self center between the pads. GiroDisc Rotor Ring Replacement: Once the Girodisc system is in place, simply replace the cast iron rotor when needed. Your GiroDisc replacement rotor rings come complete with 2 new rotor rings and all required floating rotor hardware. This is a very simple task that is quite fun. The aluminum rotor hat usually does not ever need replacement unless bent or damaged. If you damaged has reached your GiroDisc hat, you almost have quite a bunch of other things to replace also. The hat is rugged and overly strong.

Girodisc Alfa Romeo Giulia Quadrifoglio with CCM Rotors - Front Rotors The Girodisc system is a direct replacement for the OE disc. No modifications are necessary. The disc will bolt directly to the car and work with OE calipers perfectly. By upgrading your brakes with lightweight high performance replacements as opposed to a big brake kit, your factory bias is maintained as well as your ABS efficiency. This reduction in rotational and unsprung weight allows for quicker acceleration and suspension response. Girodisc Alfa Romeo Giulia Quadrifoglio with oem CCM rotors Details: Manufacturer: Giro Disc Manufacturer Part Number: A1-209 Surface: Slotted Material: Steel Intended for Street/Track Use: Yes For Use with Stock Calipers: Yes Rotor Construction: Vented Rotor Style: Slotted surface Rotor Material: Iron Rotor Finish: Black E-coat Quantity: Sold pair (one axle set) Girodisc Alfa Romeo Giulia Quadrifoglio with OEM CCM rotors - Front Rotors Fitment: Alfa Romeo Giulia Quadrifoglio 2016+ Girodisc Advantages: GiroDisc brake kits are seen at every track weekend on very exotic and extreme track cars. What made GiroDisc owners leave their OEM rotors and upgrade to a 2 piece GiroDisc kit? Less Rotating Mass via 2 piece design Lightweight 6061-T6 Aluminum Hat Grade 12 floating hardware to allow the rotor to grow when heated Curved vane design creates a cooler rotor Significant cost reduction compared to OEM GiroDisc Rotor Hat: The GiroDisc front central is manufactured using aircraft grade 6061-T6 aluminum. Less weight creates a huge advantage in acceleration and braking. Anyone who has spent the money for a lightweight double disk clutch kit with aluminum flywheel knows the importance of rotating mass. Using a lightweight rotor kit allows the brakes to decelerate the vehicle not the rotor. GiroDisc Floating Rotor Ring: Quality hi-carbon cast iron is the foundation of every GiroDisc brake rotor. Every rotor ring is made carefully in house at the GiroDisc factory in Washington state. The GiroDisc rotor utilizes a curved vane design that was originally developed in racing to act as a centrifugal air pump to force cooling air from the center of the rotor ring to the outside. This principle is similar to what is know as a squirrel cage fan design. By having impellers (vanes) between the two rotor faces, the air is moved radially, from the center outward, changing the direction of the airflow and increasing velocity. This design is mechanically strong, reliable very effective. Chances are your street cars heater blower motor and home furnace utilize GiroDisc Rotor Ring Hardware: The GiroDisc rotor ring and light-wight aluminum hat have a floating mount system, which utilizes 8 or 10 high strength alloy steel drive pins, manufactured by Girodisc in the USA to our own specifications and cadmium plated for a long lasting corrosion resistance. These drive pins take the load from braking actions while maintaining the axial and radial float between the hat and disc. The drive pins are secured by grade 12 cap screws with hardened washers. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise spring washers on the rotor side which allow the rotor to grow with heat expansion but eliminate the rattle and noise associated with floating rotors. This float also allows the rotor to self center between the pads. GiroDisc Rotor Ring Replacement: Once the Girodisc system is in place, simply replace the cast iron rotor when needed. Your GiroDisc replacement rotor rings come complete with 2 new rotor rings and all required floating rotor hardware. This is a very simple task that is quite fun. The aluminum rotor hat usually does not ever need replacement unless bent or damaged. If you damaged has reached your GiroDisc hat, you almost have quite a bunch of other things to replace also. The hat is rugged and overly strong.