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Aftermarket exhaust


neodowd

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Hi guys

Just had a question regarding replacing you exhaust in particular the front pipes on a twin turbo legacy. I have heard replacing the front pipes makes the primary turbo over boost, is this correct? I would have thought it would spool up quicker but not overboost. Can anyone shed any light to what actually happens when you replace the front pipes.

cheers

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Overspool. You can get more boost, but more the turbo spinning faster than what it should.

Rough eg: OEM pipes 14psi boost @ 30,000 rpm

AFM pipes 14 (maybe a little higher) @ 50,000rpm

This can cause turbos to turn to shit very quickly.

But like anything, some people go years withou trouble, some people only 300m down the road.

You choose your destiny....

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