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3" Exhaust

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Old 04-01-2009, 01:44 PM
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Car: Firebird - Camaro
Engine: 2.8L - 6.3L
Transmission: 700r4
Axle/Gears: 3.42 - 3.23
3" Exhaust

SO I hope to be getting headers soon, and want to replace the exhaust at the same time.

I have most of a Magnaflow 3" catback from my 93 Z28 sitting in the garage......if I got that fabbed up, would that be too big?
Old 04-01-2009, 02:46 PM
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Re: 3" Exhaust

I am also getting ready to do a 3" cat back sytem.(Hooker headers one) I dont care if its too big,thats what I've got.I also got a new high perf. cat.I will probably do my install on Sun.
Old 04-01-2009, 02:46 PM
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Re: 3" Exhaust

are you going to Cecil Co. on Sat for drag race?
Old 04-01-2009, 02:53 PM
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Re: 3" Exhaust

I'd like to go, but am kinda busy these days. Working that day. Once the car is in better shape I plan on going.
Old 04-01-2009, 05:10 PM
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Re: 3" Exhaust

If I remember correctly due to the lack of back pressure using 3" it hurts performance more than gain? I don't think it will sound good with 3" exhaust I have not done a search on what 3" v6 exhaust sounds like. What kind of muffler are you going?
Old 04-01-2009, 06:44 PM
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Re: 3" Exhaust

Someone on here has a chart for optimal exhaust system pipe size matched with engine displacement, but I don't know who it is.

Either way, for our small displacement V6 engines, 2.5" is optimal for single exhaust and 2" for true dual. I hope to go true dual sometime in the future.
Old 04-01-2009, 07:34 PM
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Re: 3" Exhaust

Originally Posted by Maverick H1L
Someone on here has a chart for optimal exhaust system pipe size matched with engine displacement, but I don't know who it is.

Either way, for our small displacement V6 engines, 2.5" is optimal for single exhaust and 2" for true dual. I hope to go true dual sometime in the future.
This is it I think https://www.thirdgen.org/forums/exha...-you-ever.html
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