Dump Valve Kompact Plumb Back – Kit BMW N54 335i

Dump Valve Turbosmart Kompact Plumb Back – Kit BMW N54 335i

Turbosmart is a leading Australian manufacturer specializing in turbo engine tuning, active since 1997 under the motto "Engineered to Win." A long-standing specialist in dump valves (blow-off valves), the brand designs, machines, and tests its products in-house to guarantee reliability, sealing, and performance.

The Kompact range is Turbosmart's entry point into the world of dump valves (BOVs): it targets stock or lightly modified vehicles used on the road, for power outputs up to around 400 hp. It directly replaces the original plastic valve with a body machined from anodized billet aluminum and a lightweight precision piston, which eliminate compressor surge and the boost leaks typical of aging OEM valves. Available in Dual Port (atmospheric sound + recirculation) or Plumb Back (fully recirculating, quiet, MAF-compatible) versions, with interchangeable springs to adjust opening pressure. It is the best-selling range in its category worldwide: a reliable, robust, and very affordable replacement, while the BOV5 and RacePort ranges target more intensive use (track, high power).

Kit of two Turbosmart Kompact Plumb Back dump valves (BOVs) for BMW models with the N54 3.0L twin-turbo engine, a 100% recirculating version: all compressed air is returned to the intake, for quiet operation that keeps a low profile.

Direct bolt-on replacement for the original plastic bypass valves, which are prone to leaking and breaking under increased boost. The kit includes 2 valves along with silicone hoses, clamps, and fittings. Boost-Balance technology, high-flow 28 mm positive-sealing piston, billet aluminum body, high-temperature O-rings.

Compatibility:
- BMW 135i / 335i / 535i N54 3.0L twin-turbo

Please note: a Dual Port version (with atmospheric sound) is available under part number TS-0203-1050.
Turbosmart part number: TS-0203-1250.