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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

open exaust

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Old Mar 7, 2011 | 07:50 PM
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Default open exaust
Who's running open exhaust and are noticing any benifits from it
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Old Mar 7, 2011 | 09:25 PM
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how open are you talking about?

open header? open y pipe? no muffler?

either way it's really loud and will get old quick. catbacks and dual setups aren't that expensive.
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Old Mar 7, 2011 | 09:51 PM
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I know that I can get a true dual set up done to my car for around 200 I'm running open y pipe right now
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Old Mar 7, 2011 | 10:47 PM
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open y sounds good IMO until it gets raspy. had my Y off today while i started fabbing up the new true dual side exits and decided to start it up and give it a rev with the open headers. its alot tamer than i remembered and didnt have any rasp at all up to 4k rpm when i let off. kinda considered leaving the y off cuz it sounds so good but i figured it better just to keep it till the duals are finished. not sure about the gains though as i still haven't got my o2 extensions so the car definitly isnt running at its peak.
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Old Mar 7, 2011 | 11:30 PM
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Open y with longtubes here.

Sounds like a dumptruck at low rpms, sweet at full throttle.
Not really raspy at all.

Much better than open headers though, plus I won't burn out my O2s
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Old Mar 8, 2011 | 01:03 AM
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Originally Posted by happysem
Open y with longtubes here.

Sounds like a dumptruck at low rpms, sweet at full throttle.
Not really raspy at all.

Much better than open headers though, plus I won't burn out my O2s
O2s don't burn up when there not installed...
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Old Mar 8, 2011 | 11:04 AM
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It'll be loud as fck with the open Y pipe..TD's are nice and clear.
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Old Mar 8, 2011 | 12:49 PM
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I usually just run open cutout but I recently hacked off the tailpipes of my SLP. Looks way better w/o tips hanging out the back imo. Pretty loud but it sounds decent.

http://www.youtube.com/watch?v=mBA_ThFY6-E

This is with the cutout open
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Old Mar 8, 2011 | 01:03 PM
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But with opens wont you flip a code? or so Ive heard...
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Old Mar 8, 2011 | 03:38 PM
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Haven't yet but mines a 93 I don't think there very sensitive on throwing colds for everything under the son
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Old Mar 8, 2011 | 03:43 PM
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I meant codes stupid auto correct
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Old Mar 8, 2011 | 04:08 PM
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Open cutout here. Clip in sig.
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Old Mar 8, 2011 | 05:54 PM
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Notice any difference performance wise with open cutout closed
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Old Mar 8, 2011 | 06:49 PM
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open y with long tubes sounds great.. i just dont think i could DD it..
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Old Mar 8, 2011 | 06:58 PM
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open headers sound great on my ride just way too loud to DD. Never tested it at the track but top end feels great and low end feels slower.
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Old Mar 8, 2011 | 07:04 PM
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Same here
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Old Mar 8, 2011 | 07:48 PM
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Originally Posted by 93z28ltone
Notice any difference performance wise with open cutout closed
Absolutely. I'm probably losing about 20HP with it closed, considering I'm running a standard 3" Hooker Aerochamber catback on a ~575HP motor.
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Old Mar 8, 2011 | 08:04 PM
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With a cut out open mine feels way better all around. Open headers just not enough BP in the low end on the street. Like joe said I gained 17rwhp on the dyno with it open vs closed
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Old Mar 8, 2011 | 08:12 PM
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What about stock y pipe with the muffler cut off will it have enough back pressure
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Old Mar 8, 2011 | 09:58 PM
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Originally Posted by RamAir95TA
Open cutout here. Clip in sig.
where do you have your cutout positioned at?
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