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Please click any of the brands below to see the Blow Off Valves we carry for your Astro:
Frequently Asked Questions
What does a blow off valve do? Why buy one?
A blow-off valve is mounted in the intake plumbing between the turbocharger compressor and the throttle plate. The blow-off valve is used as a safety measure against the turbocharger over-boosting and damaging the engine (commonly referred to as boost surge). When you are on the throttle your turbo will make a spooling noise, and when you release the gas, the blow off valve will flutter and make a PSHHHH sound that is the classic sound of a turbo.
Are blow off valves made to fit a specific vehicle? Or are they universal?
Blow-off valves are universal for all turbocharged vehicles.
Is there any reason for me to buy a blow off valve if I don't have a turbo kit?
Naturally aspirated trucks will not benefit from a blow-off valve, only turbocharged or supercharged vehicles will.
How do you install a blow off valve?
Blow-off valves are bolted to a steel/aluminum flange. The flange must be welded onto your intake piping.
A blow-off valve is mounted in the intake plumbing between the turbocharger compressor and the throttle plate. The blow-off valve is used as a safety measure against the turbocharger over-boosting and damaging the engine (commonly referred to as boost surge). When you are on the throttle your turbo will make a spooling noise, and when you release the gas, the blow off valve will flutter and make a PSHHHH sound that is the classic sound of a turbo.
Are blow off valves made to fit a specific vehicle? Or are they universal?
Blow-off valves are universal for all turbocharged vehicles.
Is there any reason for me to buy a blow off valve if I don't have a turbo kit?
Naturally aspirated trucks will not benefit from a blow-off valve, only turbocharged or supercharged vehicles will.
How do you install a blow off valve?
Blow-off valves are bolted to a steel/aluminum flange. The flange must be welded onto your intake piping.
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