Blitz 70139 VD Universal Blow Off Valves

Blitz Blow Off Valve Kits (Impreza GD8 2002+)

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Blitz Blow Off Valve Popular Q&A

Q: Can i adjust a blitz Blow off Valve for a better sound?
A: if your BOV is adjustable then you can adjust the spring tension thats against the plunger thats in the valve that realeases the air. Tighter the spring is set ... Read More »

Q: Blitz blow off valve = compressor surge?
A: you need a stronger vac line i also recomend on the back side of the intake manifold, i have had these issues a few times the vac line wasnt strong enough of a ... Read More »

Q: How to install a Blow Off Valve
A: The first thing you want to do is find a car with a turbo. Installing a blow off valve in a car without a turbo doesn't really work. Find the blow off valve in ... Read More »

Q: How a Blow Off Valve Works.
A: A blow off valve is used in the specific case of turbocharged engines. In order for a turbocharged engine to maintain its speed without becoming overcharged, it... Read More »

Q: What is a blow off valve
A: A blow-off valve is a pressure release system present in turbocharg... ...MORE... Read More »