10-31-2009, 07:24 PM
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#1
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GX Member
Join Date: May 2009
Location: Michigan
Posts: 182
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Turbo Exhaust
After I turbo the alero i was wondering what would sound/look best in the way of exhaust.
I was thinking of either cutting it off at the cat or maybe running a custom set up to the sides... i might just leave it the way it is. any FACTS that will help me?
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10-31-2009, 08:57 PM
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#2
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Hot and Fluffy.
Join Date: Aug 2007
Location: Alberta, Canada
Posts: 1,699
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Keep the cat.
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10-31-2009, 09:36 PM
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#3
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GLS member
Join Date: Nov 2008
Location: ohio
Posts: 1,460
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straight pipe from the turbo downpipe...
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10-31-2009, 11:27 PM
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#4
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GX Member
Join Date: May 2009
Location: Michigan
Posts: 182
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ya i was thinking a strait pipe too
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10-31-2009, 11:52 PM
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#5
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2Screwy
Join Date: Dec 2003
Location: South Dakota
Posts: 13,238
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have you ever looked underneath your alero? unless you hang your exhaust low and go underneath the rear axle there is no straightpiping that can be done.......
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10-31-2009, 11:57 PM
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#6
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GX Member
Join Date: May 2009
Location: Michigan
Posts: 182
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i thought about that, wasnt sure if it would work. guess it wont =/
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11-01-2009, 01:08 AM
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#7
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636 whp
Join Date: Aug 2006
Location: AZ
Posts: 11,916
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Lose the cat. Use a Dynomax Super Turbo muffler.
Just pipe sounds horrendous (IMO) lol. I'll have some sound clips of mine (although 2.4), I have my exhaust cutout open so I'm running open downpipe.
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11-01-2009, 01:11 AM
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#8
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Moderator
Join Date: Nov 2004
Location: Long Grove, IL
Posts: 5,002
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Quote:
Originally Posted by [ion] C2
Lose the cat.
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What did the world do to you?
__________________
Cliff Scott
2004 Alero GX w/sport pkg - Sold, living somewhere in WI now.
2011 Saab 9-5 Turbo4 M6
2004 Corvette Convertible M6
1994 Chevy Beretta - Quad4/M5
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11-01-2009, 01:17 AM
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#9
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2Screwy
Join Date: Dec 2003
Location: South Dakota
Posts: 13,238
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losing the cat is really unecessary.......
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11-01-2009, 01:22 AM
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#10
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636 whp
Join Date: Aug 2006
Location: AZ
Posts: 11,916
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Quote:
Originally Posted by Cliff8928
What did the world do to you?
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Quote:
Originally Posted by kwhauck
losing the cat is really unecessary.......
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After having mine plug up, I just like the assurance that nothing is restricting anything. And turbos love open exhausts.
All tests done on 2.5" diameter units:
Stock LS1 268.3 CFM
Catco (metal core) 271.9 CFM
TTS Bullet 277.1 CFM
Carsound 372.7 CFM
Catco (std. core) 388.0 CFM
-------
Test pipe 498.0 CFM |
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11-01-2009, 01:06 AM
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#11
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Canada's Ghost
Join Date: Sep 2008
Location: Alberta
Posts: 1,831
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less restrictive the better....
__________________
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11-01-2009, 10:17 PM
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#12
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2Screwy
Join Date: Dec 2003
Location: South Dakota
Posts: 13,238
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that's an ls1, lets see some alero tests.....with 2.5 or 3 inch with the difference between a high flow and no cat.......
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11-01-2009, 11:09 PM
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#13
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636 whp
Join Date: Aug 2006
Location: AZ
Posts: 11,916
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It's a catalytic converter flow test, not the entire exhaust system. Who cares what it's on? The LS1 just means it was a stock cat off an LS1 equipped vehicle, but the rest are universal items. I just wanted to throw up a stock comparison of a typical car.
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11-05-2009, 08:39 PM
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#14
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2Screwy
Join Date: Dec 2003
Location: South Dakota
Posts: 13,238
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ok thinking the whole system,
regardless, i want to see some tests with some high flow cats like a flowmaster, magnaflow, etc....
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