Dump Valve Kompact Plumb Back – Nissan

Dump Valve Turbosmart Kompact Plumb Back – Nissan Skyline RB (R32/R33/R34)

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).

Turbosmart Kompact Plumb Back dump valve (BOV), a 100% recirculating version: all compressed air is returned to the intake, for quiet, close-to-stock operation.

Designed for Nissan Skyline and other RB-engined platforms. Direct bolt-on replacement, supplied with mounting hardware and fittings. Body machined from billet aluminum plus a lightweight precision piston: eliminates compressor surge, doesn't leak, and holds boost. Compact format suited to the tight engine bays of RB-block cars.

Compatibility:
- Nissan Skyline R32 / R33 / R34 (RB20DET / RB25DET) and other RB platforms

Turbosmart part number: TS-0203-1226.