Turbosmart Kompact EM BOV VR9 Dual Port FrankenTurbo or simply want that aggressive

or simply want that aggressive turbo whistle from a proper intake

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

Most N55 tunes will adapt to the downpipes within a few drive cycles

We have installation videos available for most common BMW platforms

1025 with photos of where you are in the process

Turbosmart Kompact EM BOV VR9 Dual Port FrankenTurbo or simply want that aggressiveStock 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