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Exhaust bypass

Old Sep 21, 2007 | 10:56 AM
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Default Exhaust bypass

Anyone ever use something like this?

http://cgi.ebay.com/ebaymotors/ws/eB...m=170150122661
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Old Sep 21, 2007 | 12:01 PM
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wow that is so stupid on so many levels
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Old Sep 21, 2007 | 12:09 PM
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alot of the LS1 guys around here do it. Its about 40 bucks worth of parts... the actuator is probably 20.

Just get a Y pipe. and voila done
Old Sep 21, 2007 | 12:18 PM
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Originally Posted by Ben
wow that is so stupid on so many levels

Ok, why?

I would think that for a street/track car this would be good mounted between the down pipe and the rest of the exhaust.

Enlighten me.
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Old Sep 21, 2007 | 12:18 PM
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i always wondered how performance would be if you routed your wastegate to dump straight to atmosphere and kept your factory exhaust. obviously you'd spool a little slower and you'd be dead silent with no boost and super loud when you wg opened. But i wonder if that would be enough exhaust flow to not hinder performance
Old Sep 21, 2007 | 12:23 PM
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I bet bens talking about the bay price and kit
Old Sep 21, 2007 | 12:26 PM
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Originally Posted by Loki047
I bet bens talking about the bay price and kit
Yeah no way id pay that. Im pretty sure i've seen manual ones in jc whitney for less than half thast rice.
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Old Sep 21, 2007 | 12:36 PM
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for half? Manuals should be 20 bucks, just a y-pipe.

Actuated ones should be 40
Old Sep 21, 2007 | 12:41 PM
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useless...the new Z06's have a similar exhaust i think, but its probaby because they are trying to keep it quiet for the older people, lol
but on a miata i cant possibly see it being usefull...IOW-retarded
Old Sep 21, 2007 | 12:49 PM
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Originally Posted by levnubhin
I would think that for a street/track car this would be good mounted between the down pipe and the rest of the exhaust.
I've pondered this before myself. I'm too lazy to get under the car and swap out exhaust parts for track days. It would be nice to be able to just flip a switch and dump the exhaust out before the cat/muffler etc.

The new vette exhaust is variable, totally different than this.
Old Sep 21, 2007 | 01:21 PM
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A friend of mine has a silverado that runs two of these, one for each side of the exhaust. On his setup, he has these bolted to the Y-Pipe at the headers, so he can run his relatively quite flowmasters around town, and open headers at the drag strip. He say's it was worth it. Has had them for probably 2 years and hasn't had any trouble with them.

It's kinda cool. I didn't know he had them and one day I'm talking to him while he's sitting in his truck and all of a sudden, it got REALLY LOUD. But then it went back to quite, and then back. I didn't know what the hell was going on at first.
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