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Arguably THE BEST modification for your 135. No cutting necessary, Direct bolt-on for a complete transformation!
10X Entries For Our 25th Anniversary Sweepstakes!
Replace those Worn Out Rod Bearings!
Standard Size
Lifetime Replacement
Reduce oil temperatures with an upgraded billet housing and low-temp thermostat! Allows you to add an oil cooler to your vehicle that didn't have the factory option.
10X Entries For Our 25th Anniversary Sweepstakes!
This product was last offered at the strikethrough price on
06-13-2026
Lifetime Replacement
Enables precise control of aftermarket performance components like fuel pumps, meth injection kits, boost controllers, port injection kits
Lifetime Replacement
Replace your restrictive air box with these dual high flow cone filters for the highest possible air flow!
CARB certified for sale in all 50 states
Lifetime Replacement
Upgraded diverter valve that allows you to take full advantage of your boost pressure
Lifetime Replacement
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!
Lifetime Replacement
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.
Lifetime Replacement
70A durometer rating - slightly stiffer than stock for improved shifting quality and driveline performance. Constructed of 304 stainless steel with bonded and constrained polyurethane.
10X Entries For Our 25th Anniversary Sweepstakes!
This product was last offered at the strikethrough price on
06-13-2026
Lifetime Replacement
Charge-pipe upgrade kit with OEM Twin Valve Diverter Valve
We Price Match - Give Us A Call or Chat!
Lifetime Replacement
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.
Lifetime Replacement
The MSL thermostat ensures a cooler oil temperature which will result in more stable performance
Lifetime Replacement
Connect to 1998-2018 BMW OBD2 systems with a laptop.
10X Entries For Our 25th Anniversary Sweepstakes!
This product was last offered at the strikethrough price on
02-20-2026
Lifetime Replacement
Standard Size
Lifetime Replacement
Don't play roulette with that bottom end, secure that crank bolt and prevent a ride on the tow truck!
2X Entries For Our 25th Anniversary Sweepstakes!
Lifetime Replacement
Excellent sound & power - the ultimate performance intake! +12hp & +16lb/ft!
CARB certified for sale in all 50 states
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
07-17-2026
Lifetime Replacement
