Wirelessly connect your JB4 to your phone!
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For JB4 systems produced 2017 and later. Please check board diagrams to properly identify your JB4 before ordering.
Wirelessly connect your JB4 to your phone!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For JB4 systems produced 2017 and later. Please check board diagrams to properly identify your JB4 before ordering.
70A durometer rating - slightly stiffer than stock for improved shifting quality and driveline performance. Constructed of 304 stainless steel with bonded and constrained polyurethane.
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This product was last offered at the strikethrough price on
05-02-2026
Significantly increase your air flow rate, lower the intake air temperature, and drop your intercooler weight.
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Don't play roulette with that bottom end, secure that crank bolt and prevent a ride on the tow truck!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes!
A 4 chamber, baffled oil catch can complete with a universal mount and drain system!
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This product was last offered at the strikethrough price on
05-02-2026
The factory ducting and shrouds are all reused with no modifications necessary.
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Serious engine oil cooling for the most demanding engines
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For custom applications only. Not a direct bolt on.
Upgrade From Your Outdated Batch-Fire Injector Controller!
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Standard Size
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Add in a 0-10 Bar Pressure Sensor For Your Motiv ReFlex!
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Charge-pipe upgrade kit for S55 M3/M4/M2Competition
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Ready to make all the power!
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Install MMX's One-Piece Crank Hub as a Solution to Hub Slippage! Includes a Capture Plate for Extra Security against parts Loosening.
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Remove the dead area from your throttle pedal.
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Civilized performance for the discerning enthusiast - +5HP
Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
06-03-2026
Includes housing and sealing o-ring
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We Price Match - Give Us A Call or Chat! Low-temp thermostat reduces stresses on engine components and improves performance
This product was last offered at the strikethrough price on
12-11-2025