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.
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.
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
Supports up to 600 HP with supplemental fueling upgrades! Experience increased flow and quicker spool!
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PWG models only
A 4 chamber, baffled oil catch can complete with a universal mount and drain system!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
This product was last offered at the strikethrough price on
05-02-2026
Connect to 1998-2018 BMW OBD2 systems with a laptop.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
This product was last offered at the strikethrough price on
02-20-2026
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Upgrade From Your Outdated Batch-Fire Injector Controller!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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Upgrade Your Old EKP to Keep Up With Your Fueling Needs!
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Requires Coding
Add in a 0-10 Bar Pressure Sensor For Your Motiv ReFlex!
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The ultimate supplementary fueling kit for the N54 and N55 engines!
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Increased fueling for bigger power - supports up to 600whp! Modular design for future upgrades!
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Replaces your stock plastic charge pipe and boost pipe for improved flow, horsepower, reliability!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
This product was last offered at the strikethrough price on
05-02-2026
Add power and improve throttle response with this top of the line performance intake system!
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Remove the dead area from your throttle pedal.
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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.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms