Hi! We are on vacation from 20.03.2023 till 29.03.2023.
All placed orders within that time will shipped from the next working day. Thank You :)
BLOW OFF Type 2 - for Subaru WRX STI
- Product Code: BOV Typ 2 SUBARU WRX STI
- Availability: In Stock
Our turbo blow-off Subaru Impreza 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.
(please mind this is high quality product made in Poland EU not cheap cast from China)
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.
Twin piston construction of our blow-off valve allows to 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).
This turbo blow-off valve is dedicted for: Subaru IMPREZA GT, STI ,WRX - please specify the year of production upon ordering.
Kit contains two set of blow-off springs for different boost levels and also contanins blanking plate for stock DV valve.
ProPerfekt is polish company produces high quality aluminium CNC machined race parts blow off valves, MBC, blanking plates, diverter valves, adapters, pulleys, swirl pots, catch tanks etc.
All parts are for Subaru Impreza Blow-off manufactured and designed in Poland.
We ship worldwide! Our online shop is always at your service!