2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Exhaust question

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Old Jun 27, 2005 | 07:47 AM
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Houstonderk's Avatar
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From: Andrews AFB, MD
Exhaust question

Would not having an exhaust on with the emissions removed be bad for the apex seals? I was told by someone that without backpressure it really messes them up. I had the part that comes off the turbo but instead of where the first flange is there is one of those cheapo mufflers on it.
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Old Jun 27, 2005 | 09:57 AM
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I'm not exactly sure what you're saying, but it won't hurt the engine to have a more open exhaust. What can happen if you have an open exhaust with the stock wastegate, is that you can cause the car to overboost, create a lean condition and blow the engine. Are you saying that you have a muffler in place of where your downpipe should be?
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Old Jun 27, 2005 | 11:06 AM
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From: Andrews AFB, MD
Well right were the part thta bolts to the cat the flange is cut off and a cheapo muffler from autozone is clamped on it. Altogether the exhaust is about 2 to 3 feet long.
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Old Jun 27, 2005 | 11:24 AM
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From: Orange Park FL (near Jax)
That and a short intake run is how you move the power band up.
Of course it falls flat without a port job to let it breathe.

As Snrub said, watch out for boost creep..
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