Best Selling Products

Complete AP Racing Front Brake Kit for Sprint Races For the Subaru BRZ & Toyota GR86 (2022+) Newly designed caliper brackets and rotors accommodate the 2022+ BRZ aluminum spindles (old Gen 1 kits will not fit the Gen 2 cars) Clears Gen 2 (2022 and up) 17- and 18-inch wheels without need for spacers Features AP Racing CP8350 four-piston fixed calipers 299mm x 32mm 60-vane AP Racing two-piece floating rotors Saves 20 lbs. of unsprung weight from the nose of vs. OEM brakes Every component is designed to resist the heat of extended lapping on the race track Pistons are sized to allow for seamless integration with the OEM master cylinder and ABS system Designed to work with OEM rear brakes

Forgeline Wheels Motorsport Series991 Porsche GT3 Track Package FITMENT 991.1 Porsche GT3 (2014-2016) 991.2 Porsche GT3 (2018-2019) Discovery Parts Makes Buying Forgeline Wheels Easy Over the years, we've sold hundreds of Forgeline racing wheels for the Porsche GT3. We've taken all we know about the right offsets, wheel sizes, brake and fender clearance, ABS and Traction Control functionality, etc., and created a simple Track Package to take the guesswork out of upgrading to Forgelines. Forgeline Motorsport Series lightweight forged racing wheels are engineered for race cars and dedicated track duty. They are machined from individual billets of forged 6061-T6 aluminum and include features like I-beamed spokes, deeply-machined centers, and aggressive load ratings to be extremely strong, stiff, and lightweight. Simply choose your wheel style and finish (standard or premium), and we'll get your Forgeline Motorsport wheels started.1 It's that easy! Forgeline Motorsports Series Center Lock wheels are engineered exclusively for Porsche center lock applications like the 991 GT3. Of course, if you prefer a wheel style that's not listed or you have any questions at all, talk to one of our Forgeline specialists at (888) 748-7223. They can answer any questions you have! Included in the GT3 Track Package Two front and two rear Forgeline Motorsports Series Porsche center lock wheels finished in any standard powder coat color with a knurled bead for maximum tire grip. You can upgrade to a premium finish and truly personalize your Forgeline Track Package. FORGELINE GE1R FOR PORSCHE GT3 (991) The eight-spoke center-locking Forgeline GE1R represents the absolute latest in advanced wheel technology, including one-piece forged monoblock construction, motorsport engineered design, and I-beamed spokes and spans. It combines head-turning good looks with race-ready strength and durability. Designed for the 991 GT3, the Forgeline GE1R is a fully-forged one-piece monoblock wheel that's 30% stiffer than Forgeline's popular GS1R racing wheel. The I-beamed design minimizing wheel deflection under load for incredibly precise feedback and control, while the concave eight-spoke design of the GE1R offers generous caliper clearance for large racing-brake fitments. Forgeline's computer-simulated FEA design process yields a wheel that is very lightweight and extremely stiff, with excellent fatigue strength. FORGELINE GS1R FOR PORSCHE GT3 (991) Originally designed for professional racing teams competing in the IMSA Continental Tire SportsCar Challenge Grand Sport (GS) class, the Forgeline GS1R combines the latest in advanced wheel technology, including one piece forged monoblock construction, with motorsport-engineered design and I-beamed spokes. This result is a wheel is fully engineered to withstand the rigors of top-level endurance racing. With a 2100-lbs. street tire load rating and exceptional deflection stiffness, the GS1R remains incredibly lightweight. Made from the same forgings and similar design as Forgeline's legendary GA1R wheel, the GS1R employs a new chamfered outer lip with fewer sharp edges for easier handling. FORGELINE NW105 FOR PORSCHE GT3 (991) The Forgeline NW105 is a one-piece forged monoblock wheel designed specifically for the Porsche 992 GT3 RS. The NW105 combines cutting-edge engineering and sleek aesthetics to enhance the overall performance and appearance of the GT3RS. A key aspect of the Forgeline NW105 is its bold, seven-spoke layout with tapered angular spokes strategically designed to optimize airflow and enhance brake cooling. FORGELINE VX1R FOR PORSCHE GT3 (991) With the striking good looks of Forgeline's popular VX1 street wheel, but with a load rating suitable for dedicated track duty, the VX1R was engineered for beauty and braun! It is a full track-ready competition wheel equal in strength to Forgeline's famous GA1R and GS1R Motorsports Series wheels. The VX1R features a sharp Y-spoke design with long spokes that flow into the center lock, striking sharp angles, a deep concave profile, and a chamfered outer edge. Beyond just beautiful style, the VX1R is engineered to allow plenty of room for caliper clearance and extreme brake fitment. And the one-piece monoblock forging and computer-simulated FEA design process yield a wheel that is lightweight, stiff, and has excellent fatigue strength. Colors and Finishes Available for Forgeline Wheels Standard finishes for Forgeline Wheels include all of the most popular wheel colors in a durable powder coat finish. The Premium finishes include several machined or brushed finishes that can be combined with clear or tinted-clear powder coats for a truly amazing appearance. Forgeline is well-known for the flawless finish and machining details of their racing wheels. NOTES 1 Forgeline Motorsport Series wheels are custom made-to-order with lead times of three to five weeks. Discovery Parts is the only dealer in the country with inventory on hand of common Porsche fitments, designs, and colors for immediate shipping. Check with us today to see if we have what you are looking for in stock.2 Discovery Parts carefully selects tire compounds and sizes to maximize performance and grip while maintaining full functioning of your ABS and TC systems. Not all tires are available in all wheel sizes.

CMS Performance Bolt In Roll Bar For BMW G87 M2 (2023+) We now have an option for cars equipped with the factory sunroof THE PREMIUM ROLL BAR FOR THE INCREDIBLE NEW BMW M2 Introducing the CMS Performance Roll Bar for the all-new, amazing G87 M2!  The powerful new M2 promises to be a hoot on the track-day circuit, so we got to work right away engineering a bolt-in roll bar that lives up to Competition Motorsport's tradition of building the strongest, safest, most beautifully constructed roll bars on the market. The new CMS Performance roll bar for the G87 delivers on all points! AN M2 ROLL BAR ENGINEERED FOR SAFETY AND PERFORMANCE Conceived from the ground up with a premium on safety and structural rigidity, the exceptional design of the CMS Performance M2 roll bar integrates perfectly with the M2's luxury/sport interior. CMS uses advanced Docol R8 Advanced High-Strength Steel tubing throughout our roll bars, giving you unequalled tensile strength and occupant protection. Docol R8 is 15% stronger than 4130 CrMo steel and 30% stronger than mild (DOM) steel used in other bolt-in roll bars. It is superior in every way: resistance to deformation, weld strength, and energy dissipation. The one-piece main hoop with fully-integrated X-bracing and harness bar bolts directly to the M2 chassis, forming the backbone of the CMS Performance roll bar. Rearward kicker supports are optimized for support in a roll-over event while maintaining an unobstructed rear view. The harness bar is specifically designed to locate racing harness shoulder straps at the proper angle (0° to -20°) to the driver's shoulders regardless of seat position. Click Here For Installation Instructions CUTTING-EDGE MATERIALS MEET AMERICAN MASTER CRAFTSMANSHIP The CMS Performance BMW M2 Roll Bar is designed to bolt directly to the M2 chassis strong points without the need for any modification of existing interior trim or use of backing plates. Adding a CMS custom designed rear seat delete gives the whole installation a clean, factory appearance. Full 360o TIG welding throughout gives the CMS Performance Roll Bar unsurpassed strength and durability. Each roll bar includes custom powder coating in your choice of matched G87 M2 factory colors1. Or go with a custom technical color like the amazing Superchrome (check it out in the photos above!) We have access to over 5,000 powder coat colors, so if you need a color not on the list, just give us a call and we'll make sure your M2 roll bar has the look you like! A BEAUTIFUL BEAST OF AN M2 ROLL BAR! Our unwavering focus on using cutting-edge materials, unsurpassed design & construction, and premium fit & finish has taken CMS Performance roll bars to the top of the industry. The BMW G87 M2 roll bar is the latest addition to our growing catalog, bringing safety, integrity, and beauty to customers taking their new M2 to the track. CMS PERFORMANCE BMW G87 M2 ROLL BAR OPTIONS The optional CMS Performance Rear Seat Delete Kit is custom-designed for the G87 M2, giving your roll bar installation a factory-finished look. Add Schroth Profi II ASM or Sabelt Steel Series four-point harnesses give you increased on-track safety using your factory BMW seats. CMS Roll Bar Harness Collarshelp keep your harness shoulder straps located right where you want them. CMS PERFORMANCE BMW G87 M2 ROLL BAR DETAILS Materials: 1.75″ X .095" Docol R8 Advanced High Strength Steel throughout (stronger than 4130 CrMo) Construction: fully TIG welded one-piece main hoop and three-piece kickers ease installation while maintaining exceptional strength Precision-cut mounting plates Designed, manufactured, and finished in the USA CNC machined high-strength-steel interlocking joints Allows full seat travel with virtually any seat All USA-sourced Grade 8 hardware included Detailed installation instructions Installation requires removal of the factory rear seats. This product is intended for off-road race track use only. 1 Note: CMS Performance powder coat colors are professionally matched to be as close as possible to factory paint codes. However, color-matching powder is not the same as mixing liquid paint. In a few cases, slight color variance is normal and is not perceptible with the roll bar installed inside the car.

Longacre Aluminum Flip-up Start / Ignition Panel Complete ready to install Aluminum switch panel with flip-up ignition switch (with red switch guard), push-button starter switch and one accessory switch all in one pre-wired panel assembly. The ignition and accessory switches have a pilot light that turns on when the system is on and complete making the Longacre 44866 switch panel a crew chief's best friend. These 40 amp, 12 V Longacre switch panels come pre-wired and all connections are soldered and heat-shrunk. These Longacre switch panels have silicone rubber switch covers on the accessory switches and plug into Longacre wiring harnesses. These switch panels are weatherproof, high-capacity ignition switch and aircraft-style covers. Longacre Aluminum Flip-up Start/Ignition Panel Details: Manufacturer: Longacre Manufacturer part number: 44866 Switch Panel Style: Dash mount Number of Switches: 3 Fused Circuits: No Circuit Breaker Included: No Lighted: Yes Wiring Harness Included: Yes Relay Included: No Accessory Switch Style: Toggle switch Starter Switch Included: Yes Starter Switch Style: Push button Switch Panel Material: Aluminum Switch Panel Finish: Black Width (in): 5.125 in. Height (in): 3.625 in. High capacity (40 amp at 12 volts) ignition switch with aircraft style cover and pilot light - Easy to turn off in an emergency from any angle, even with gloves. Will not turn off from vibration. Silicone rubber weatherproof ignition switch cover included - to keep out dirt and moisture Starter button with weatherproof cover 1 accessory switches with silicone rubber switch covers and pilot lights Great looking Aluminum Panel - black anodized with clean, modern graphics Pre-wired with high insulation "Fat" wires and soldered terminals with heat shrink connections

The New AiM SW4 Steering Wheel The AiM SW4 is one of the most versatile racing steering wheels available, compatible with a long list of ECU protocols to meet any driver’s needs. This latest evolution of the AiM steering wheel incorporates data-logging in the steering wheel itself, so there's no need for a separate logger (e.g., AiM Evo4 or Evo5). This saves space and makes installation and integration into your race car's electronics easier. Optional paddle shifters and clutch paddles can be added in the dropdown above for a complete car control solution. Choose the Version That Fits Your Needs 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 in multiple pages, putting all the data you need for every situation right at your fingertips. Individually configurable push-buttons8 completely configurable buttons and 2 additional free contact normally open buttons. Each button can be configured as Momentary, Toggle, or Multi-Position. The SW4 comes with a set of stickers that can be used to identify the function buttons as well as the remaining eight push-buttons.  Rotary switches are completely configurableSW4 has three completely configurable rotary switches. Switch through various functions, pages, etc., with a positive "click". Individually configurable LEDs, shift lights can be configured for each gear including LED colors and RPM threshold values. There are four alarm LEDs, too, which can be individually triggered. Clutch and Paddle Shifts (optional)SW4 can be upgraded by adding electronic paddle shifters and/or clutch shifters. These put even more features and controls right at the tips of your fingers!

AiM Mercury 849849 AXX_New+FC12 ECUs Mercury 849849 ECUs feature a serial communication protocol. To connect AiM device to these ECU adedicated AiM interface cable is needed. This cable part number is: X50EN849849. Here below it isshown. Mercury 849849 ECUs are equipped with a 4 pins AMP female connector that must be connected toAiM interface male one shown here below. Mercury 849849 AXX interface cable has four flying leads you can connect to AiM devices.Please refer to your device pinout to know the pins to be used. Here below you find wiring diagram and connection scheme Cable Function AiM cable colour AiM device RS232RX White RS232RX/ECU RS232TX RS232TX Blue RS232TX/ECU RS232RX +12V Red +12V GND Black GND Please note:AiM wiring harnesses supplied after September 2018 have the following labels:ECU RS232TX (white) to be connected to ECU TX pinECU RS232RX (blue) to be connected to ECU RX pin (if indicated in the connection table above)AiM wiring harnesses supplied before September 2018 have the following labels:RS232RX (white) to be connected to ECU TX pinRS232TX (blue) to be connected to ECU RX pin (if indicated in the connection table above) Race Studio configuration Before connecting AiM devices to the ECU, set all functions using AiM software Race Studio. Theparameters to set in the device configuration are:• ECU manufacturer Mercury• ECU Model according to your ECU version or to its firmware version: 849849_Axx849849_Axx_New FCR12 Available Channels Channels received by AiM devices connected to “Mercury – 849849_Axx”, “849849_Axx_New” or“FCR12” protocol are the same and here below they are listed: CHANNEL NAME FUNCTION MER_RPM RPM MER_TAIR Intake air temperature MER_TENG Engine temperature MER_MAP Manifold air pressure MER_INJT Injection time MER_ECU_TRIM ECU Trim MER_FUEL_GRP1 Injection volume for injectors group 1 MER_FUEL_GRP2 Injection volume for injectors group 2 MER_FUEL_GRP3 Injection volume for injectors group 3 MER_FUEL_A Number after air temperature compensation MER_FUEL_B Number after engine compensation MER_FUEL_C Number after dynamic acceleration compensation MER_FUEL_D Number after cold piston compensation MER_FUEL_T Fuel temperature MER_ECU_TEMP ECU Temperature MER_ONTIMECONS Real time consumption MER_ECU_BATT Battery supply

AiM MyChron 5 Battery Block Off Plate AiM MyChron 5 battery block off plate is used when you use an external power cable to power you MyChron 5 dash. By powering your MyChron 5 by your kart battery, you now have an almost eternal power supply for your kart dash. To seal your MyChron 5 against the elements, this AiM battery block off plate kit is used. AiM MyChron 5 Battery Block Off Plate Details: Manufacturer: AiM Manufacturer part number: X80MYC5TPB Fits MyChron 5 and MyChron 5 2T: Yes Fits MyChron 4: No Hardware included: Yes

AiM 22 Pin Aux Harness Straight Connector EVO 5 This straight harness plugs into the 22-pin connector on the AiM logger. Several of the advanced functions rely on this harness, which is not included with the standard kit. If you would like to add 4 more analog channels, 2 more digital connections and connect easily to your RS232 or CAN-2 ECU, the AiM V02586030 is your next best upgrade. The AiM EVO5 Logger 22 Pin Auxiliary Harness will provide access to the following functions: Analog sensor channels 5, 6, 7, 8 Digital wheel speed sensor inputs 2, 3, 4 Digital 12v outputs 1, 2 RS232 ECU connection Can-2 ECU connection The factory harness that comes with the AiM Dash/Logger allows only 4 inputs. If you would like more inputs then this is your harness.For use with AiM EVO5 only. Not compatible with MXG, MXS, MXM, MXL Pro / MXL Pro05 or EVO3. AiM EVO5 Logger 22 Pin Auxiliary Harness Details: Manufacturer: AiM Manufacturer part number: V02586030 Harness Angle: Straight AiM EVO5 Logger 22 Pin Auxiliary Harness Primary use: Adding analog sensors greater than 4. Your factory harness will allow up to 4 analog channels (sensors), this may be (1) Water Temperature, (2) Oil Temperature, (3) Oil Pressure and (4) Brake Pressure. Using the AiM 22 Pin Auxiliary harness you now can add four more analog channels (sensors) like (5) Steering Angle, (6) Throttle Position, (7) Gear Box Temperature, and (8) Differential Temp. Another way we see this cable used is independent shock travel (all corners) or engine oil temperature pre-cooler and oil temperature post-cooler.

AiM MXL to MXG, MXS, MXL2 Adapter Harness For use when you upgrade from an AiM MXL Pista or Strada to the modern MXS, MXG, MXP or MXL2 dash. You could remove the MXL harness from the chassis and replace it with the supplied harness that comes with the MXS, MXG or MXL2 or use this adapter harness to make installation easy. AiM AiM MXL to MXG, MXS, MXL2 Adapter Harness Details Manufacturer: AiM Manufacturer part number: V02573090 Connector 1: 22 pin Connector 2: 37 pin 2 Speed inputs 2-4 3 CAN inputs CAN/K-line ECU wiring 12VDC+/- This special harness has one 22-pin and one 37-pin Deutsch connector to plug into the back of the MXL 2 or MXG dash. The other end of the harness has female connectors designed to accept your current MXL wiring harness. You won't have to cut wires, re-run cables, or even unplug your sensors! Simply disconnect the two rectangular AMP connectors from the back of your MXL and plug them into this harness. Your lap timing receiver and anything plugged into the CAN port can be connected to the harness as well. This harness also provides connections for speed inputs 2-4, 3 CAN inputs, and CAN/K-line ECU wiring, for full access to all of the advanced features of the MXL 2 and MXG/MXS. Not compatible with MXL Pro or MXL Pro05 wiring harnesses. If you are unfamiliar with Bend Radius, Wikipedia saves us: Bend radius, which is measured to the inside curvature, is the minimum radius one can bend a pipe, tube, sheet, cable or hose without kinking it, damaging it, or shortening its life. The smaller the bend radius, the greater is the material flexibility (as the radius of curvature decreases, the curvature increases).

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.

Sparco Single External Horn Button Kit Not just for horns anymore! The Sparco Single Horn Button Kit is often used for Radio Push To Talk (PTT), Flash to Pass, Drink Bottle, even NOS. This is the little brother of the Sparco Dual Horn Button, just with a single button. SINGLE HORN BUTTON DETAILS Manufacturer: Sparco Manufacturer part number: 015NE981 Buttons included: One Fits between all Sparco, OMP MOMO, and Driven steering wheels with six bolts Frame color: Black Button Color: Red