Turbosmart Kompact EM BOV VR9 Dual Port FrankenTurbo The N55's factory twin-scroll turbo

The N55's factory twin-scroll turbo prioritizes efficiency over power—our Stage 2 hybrid tears down that wall with a larger compressor wheel and reinforced internals that push your single-turbo straight-six into serious power territory

These aren't universal pipes bent to "close enough" — RVG engineers each curve specifically for F-chassis clearance constraints while maximizing flow velocity

Expect to unlock 150-200+ additional wheel horsepower over conservative factory-limited tunes

consider an upgraded wastegate to handle the increased flow

Turbosmart Kompact EM BOV VR9 Dual Port FrankenTurbo The N55's factory twin-scroll turboStock diverter valves leak under pressure and respond like molasses when you need instant boost retention. The Turbosmart Kompact EM BOV VR9 Dual Port delivers pressure relief that's 57 times faster than your eye can blink, giving you the throttle response your BMW's turbo was designed to deliver. Performance Gains Expect immediate improvements in throttle response, especially during rapid gear changes where stock diverter valves create lag between