This Torque Solution adapter adapts an HKS blow-off valve for BMW models equipped with the N54 engine, covering 135i, 335i, 535i and X5 applications. The adapter provides the correct mating surface to install an HKS BOV on these specific engines, offering a vehicle-specific solution for integrating that aftermarket component into the stock plumbing.
Torque Solution HKS Blow Off Valve Adapter: BMW 135 335i 535i X5 n54 ONLY