Blow-off GVN type Opel Vectra Signum, Saab 9-3, Z20NET - Garrett

Replace your stock DV valve with a true Blow-off valve! Our blow-off type BVN is a direct replacement for the OEM valve which is prone to failure when the engine has been tuned or had an upgrade to the engine management software. This valve is complete and ready to install with no fitting kit required. Unleash the true turbo sound of your car!

(please mind this is high quality product made in Poland EU not cheap cast from China)

Blow off GVN type is replacement for:

- Opel/Vauxhall Vectra (2003-2009)
- Saab 9-3 (2002-2007)
- Opel/Vauxhall Signum (2003-2009)

Fits Garrett turbochargers only!

If you are looking for valve dedicated for TD04 Mitsubishi click here

Our turbo blow-off valve is made from billet aluminium, this atmospheric valve blows air to atmosphere creating the "Whoosh" sound most commonly associated with rally cars. This increases both quicker throttle response and higher clamping load to maintain boost pressure more reliably.

Blow off valve is supplied with two valve springs - a soft spring and a hard spring.
The soft spring is already installed in the valve and will be perfect for 90% of applications.
The harder spring is supplied separately for self-installation, is designed for higher than stock boost level.

(please mind this is high quality product made in Poland EU not cheap cast from China)

Twin piston construction allows use this with most cars with MAF sensor where single pistons valves can cause ECU errors.
We cannot always guarantee that each individual’s application will be compatible with a valve that vents the charge air into the atmosphere.

Note: We recommend installation of the valve by a specialized company. Blow off is dedicated to track use and sports cars. The blow-off valve, installed instead of the stock DV valve, may cause a check engine error. If this occurs, remap should be performed to adjust ECU to change done in the intake setup (disable check engine errors permanently).

ProPerfekt is polish company produces high quality aluminium CNC machined race parts blow off valves, MBC, blanking plates, recirculating valves, adapters, pulleys, swirl pots, catch tanks etc.

All parts are manufactured and designed in Poland.

We ship worldwide! Our online shop is always at your service!