The MSL thermostat ensures a cooler oil temperature which will result in more stable performance
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This one-piece hub kit includes all the necessary components to successfully replace the stock OEM crank hub with the single-piece crank hub. The kit now includes Hardened crankshaft damper bolts at no additional charge.
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In-house engineered for maximum efficiency, optimum air flow, and exquisite style.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! USE CODE ECS20 IN CART FOR BEST PRICE Durable performance twin cone intakes constructed of hand-laid carbon fiber for exceptional performance.
A 4 chamber, baffled oil catch can complete with a universal mount and drain system!
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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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Replace your restrictive air box with these dual high flow cone filters for the highest possible air flow!
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The twin disc 9 inch with ceramic friction discs is designed for high horsepower motorsport applications where a high heat and torque capacity is required. Rated for 1350 ft-lb!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For 8 bolt crank applications only For vehicles with 8 bolt crank/flywheel only
The one-piece Insane Crank Hub kits are designed and manufactured in Lithuania and made from a solid block of thermally absorbed, heat-treated steel.
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Replace your flimsy, restrictive plastic chargepipe with this high flow charge pipe for a cost efficient upgrade! This pipe features an upgraded Tial BOV flange and includes a Black Tial BOV!
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Worn and slipping clutches throw away horsepower and detract from your driving experience
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms We Price Match - Give Us A Call or Chat! Upgrade for 135i/335i/535i models from the 335is! Featuring a heavy duty clutch with more holding power and stock-like pedal feel. Excellent solution for
Charge-pipe upgrade kit with OEM Twin Valve Diverter Valve
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The last expansion tank you'll ever need! Upgrade to durable aluminum construction and leave failure-prone plastic behind.
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Don't play roulette with that bottom end, secure that crank bolt and prevent a ride on the tow truck!
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Replaces your stock plastic charge pipe for improved flow, horsepower, reliability!
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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.
Worn mounts, bushings, and other drivetrain components rob performance. Replace or upgrade your drivetrain with our extensive catalog of mounts, bushings, clutch kits, and more.
Lifetime Replacement
