BMS N54 JB4 BMW Performance TunerReady to take your twin turbo BMW to the next level? How about up to 80hp to the wheels (100hp crank) on a completely stock car, up to 160hp to the wheels on factory turbos, or up to 350hp to the wheels on a fully modified car with larger turbo(s)? The JB4 includes a simple plug and play installation harness and is compatible with all ECU versions and transmission types. It's everything you need to take your N54 powered vehicle from mild to wild! In

Magnaflux Inspected

Aggressive 2

Multi-stage heat treated for dimensional stability and fatigue life

" 2011+ F25 X3 35iX

Bosch Premium Alternators and Starters are quality built and 100% factory tested to ensure years of reliable performance

7T using stock intake manifold

Integrated Jack Point

Gain power and torque across the entire rpm range with no loss in turbo spool time with a true motorsport designed intake manifold for your VW or Audi 2

Rest assured

- 285 ft/lbs Massive Torque

We engineered it specifically to smooth out exhaust pulses for a sophisticated

Take care when routing the lines and avoid drooping