Larger diameter crank pulley & smaller supercharger pulley increases the speed at which the supercharger spins, increasing the boost pressure output
*NOTE: This kit must be used with appropriate "Stage 2" performance software.
Larger diameter crank pulley & smaller supercharger pulley increases the speed at which the supercharger spins, increasing the boost pressure output
*NOTE: This kit must be used with appropriate "Stage 2" performance software.
Plug-and-play performance solution - Enjoy gains of up to 35% more HP and 25% more torque, without voiding warranty!
For 300hp models with Gen1 / Simos 8.5 ECU (Engine codes: CAJ, CCA, CGW, CGXB & CTUA)
Maintain proper operating temperature with a new thermostat, housing and hardware
10X Entries Into Our F80 M3 Sweepstakes For vehicles with models year through 2015
Brand:
ES#:
3651498
Mfg#:
06E121111ALKTKT4
In Stock
ON SALE!
SAVE 15%
$82.99
This product was last offered at the strikethrough price on 05-02-2026
Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.
Lifetime Replacement
