or competition-level racing

are built to meet the extreme demands of BMW S55 engines with 144

Must use aftermarket high flow plenum with a throttle body conversion

providing enhanced stability and reducing load loss

Using a dry nitrous kit on a race engine boosts performance

BMW S14 2.5L Stroker Kit by 5150 AutoSport F91 M8 or competition-level racingBigger displacement, more torque and more power. Our 5150 Autosport 2. 5L Stroker kit is specifically designed for BMW S14 engines. Utilizing CP Carrillo Forged Pistons and Carrillo or SP Components Forged Connecting Rods, as well as the Genuine BMW 2. 5L Euro Crankshaft, this kit has stood up to the tests and trials of high horsepower application time and time again. We only sell you the products that we have used and tested ourselves. Other teams