5150 AutoSport BMW S55 Pro Series Turbo Build Kit For F80 M3, F82/F83 M4 & F87 M2 Competition Select Kit:Pro-Xtreme unfiltered exhaust note and a

unfiltered exhaust note and a more subdued tone for daily driving

525i Saloon & Touring Pro Kit Lowering Springs E2014-140

- F82 & F83 M4

improves turbo performance

5150 AutoSport BMW S55 Pro Series Turbo Build Kit For F80 M3, F82/F83 M4 & F87 M2 Competition Select Kit:Pro-Xtreme unfiltered exhaust note and aThe 5150 AutoSport S55 Pro Series Turbo Build Kit is a comprehensive internal engine solution developed to support high horsepower turbocharged BMW S55 builds. Designed with strength, reliability and precision at the forefront, this kit brings together carefully selected forged internals and upgraded fasteners to prepare your engine for increased boost and sustained power output. Each kit is assembled to deliver exceptional durability while