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Supercharged/Turbocharged The increase in air/fuel pressure above atmospheric pressure in the intake system caused by the action of a supercharger or turbocharger attached to an engine.

Exhaust questions?

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Old 09-28-2005, 08:16 AM
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Exhaust questions?
Anyone know how to make exhaust quieter after turbo charging. Mine is loud as hell.I have 2.5 all the way back no cat with greddy evo 2 on the end.
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Old 09-28-2005, 08:27 AM
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Find a high flow cat.
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Old 09-28-2005, 11:13 AM
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The reason its so loud is because its straight-piped...get a cat and resonator and you'll see a world of a difference. Yes, turbo cars are more quiet...but not straight-piped.
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Old 09-28-2005, 12:24 PM
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I'm having the same problem with my Cattman headers, test pipe and Apexi WS catback. I'm having a 2.5" b-pipe with a 6"x20" resonator made in a week or two. I'll let you know how it turns out.
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Old 09-28-2005, 12:47 PM
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cool thanks.
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Old 09-29-2005, 07:41 AM
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Turbo, no cat, 2.5" greddy SP and my car is quite, very quite.....until the wastegate opens. The turbo will make a big difference.
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Old 10-03-2005, 07:46 PM
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My car is just overly loud to me it isnt to loud driving or anything. But i would love it to be quieter ,what all do you have exhaust wise mike?I have a straight through with greddy cat back and it is loud.Mine is the greddy evo2, that could be the difference.
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Old 10-03-2005, 08:30 PM
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He just said what he has in his post... turbo, no cat, 2.5" greddy SP.
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Old 10-03-2005, 08:35 PM
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I'm Turbo'd, No Cat, 3 inch custom exhaust, 3x20 inch Luvered Resonator, and 3 inch HKS Muffler. Car is pretty quite while driving, but under low rpm deceleration I do get the occasional burble.

But I would like to get ride of my luvered resonator and get the standard type. Perhaps it will sound a bit different.
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Old 10-05-2005, 07:02 PM
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Neal is that you on streetfire running that vette ?
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Old 10-05-2005, 07:04 PM
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Yes that is me.
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Old 10-05-2005, 07:09 PM
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That was pretty sweet what ems are you running?Engine management becaus ei want to run more boost but need to do some more work. I want to be running 12 psi too. So if you could kinda give me a list of things also what clutch are you running?I am looking in to 550 cc injectors and a walbro but what ems should i look into.
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Old 10-05-2005, 10:18 PM
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greddy emanage blue is my ems, clutchnet 6 puck sprung disk and act PP.
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Old 10-06-2005, 07:05 AM
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Cool thanks Neal keep up the good work by the way keep taking out those zo6's.
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Old 10-06-2005, 10:02 PM
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I will try if my car ever moves from the garage again heh.
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Old 10-07-2005, 04:48 AM
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yeah i think i read that in another thread what happened?
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Old 10-07-2005, 01:55 PM
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stock exhaust plus cutout = best of both worlds more power when you need it and quite when you need it
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