Turbosmart BMW 135i/335i/535i/Z4 w/ N54 Twin Turbo 3.0L Kompact Plumb Back Kit

This Turbosmart Kompact Plumb Back Kit includes a billet aluminum blow-off valve designed to replace the factory plastic diverter and bypass valves on turbocharged BMWs with the N54 twin-turbo 3.0L engine. It's a full recirculating system, meaning all excess boost pressure is sent back into the intake tract, which is great if you want the performance and reliability benefits without drawing attention. This kit is a direct swap for the OEM units, making installation straightforward.

The Kompact range uses Turbosmart's boost-balance valve technology, which is motorsport-proven for performance and reliability. The billet aluminum construction, along with high-temperature O-rings, ensures this valve can handle the heat and pressure found in turbocharged applications. This well-built unit offers a solid upgrade over the stock plastic components, helping to maintain consistent boost pressure and improve the overall response of your turbo system.

This kit fits a range of BMW models, including the 135i, 335i, 535i, and Z4 equipped with the N54 engine. It's a popular choice for owners looking for a more robust and reliable solution than the factory diverter valves.