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Q: I know a blow off valve wouldnt do anything to your vehicle if you have a non turbo car

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I just want the blow off valve noise to appear when i let go of the gas but my car isnt turbo charged. Will i still get the noise from the blow off valve? I need to know before i buy the blow off valve.

My car has 124000 miles.
My car has an automatic transmission.

The noise you are referring to hearing when letting off the gas is not the noise of a blow off valve. The noise you are referring to is the result of the release of intense manifold pressure created as a result of the turbo. Without the added manifold pressure created by the turbo, you will not have this sound.

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