08-10 SS Turbocharged General Discussion Discuss the 2008 - 2009 Chevy Cobalt SS Turbocharged. On sale since the second quarter of 2008.

hp gains!

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Old Jul 15, 2009 | 09:10 PM
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ssturbo305's Avatar
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From: miami
hp gains!

tmrw i get my 3'' exhaust from hahn. ( didnt buy the dp yet )

im completely stock. will i notice any gains ?????????


also does anyone who have a cold air intake and take in to dealer for repairs? are they gay about it?
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Old Jul 15, 2009 | 09:57 PM
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From: Chicagooooo
You won't get any gains from it until you tune the car. The catback is good on our cars its the downpipe that's really restrictive
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Old Jul 19, 2009 | 03:08 AM
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From: Creedmoor, nc
No real gains other than the sound on a stock car. Like BartSS said, the downpipe is the major restriction on our exhaust... It will sound really nice though
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Old Jul 19, 2009 | 12:19 PM
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From: Tooele, UT
no, you will not get any gains...but you will obtain a much better sounding car....not a bad choice for a starting mod....
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Old Jul 19, 2009 | 12:22 PM
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From: Richmond
You'll be making 260 at the crank.
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Old Jul 19, 2009 | 12:32 PM
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From: Clarksville
Originally Posted by BartSS
You won't get any gains from it until you tune the car. The catback is good on our cars its the downpipe that's really restrictive
Maybe I'm confused, but if the DP is what is so restrictive, how will a catback open it up? Wouldnt you really need to change out the DP for some noticeable gains? And once I order my catless DP and a new tune, will I actually be able to notice the power difference?
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Old Jul 19, 2009 | 12:36 PM
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From: milton ma
the tune on the car will stop you from making any more hp... but you will be ahead of the game when you tune it
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Old Jul 19, 2009 | 12:44 PM
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From: Poplar Bluff, Missouri
ill let ya know on wednesday, i just ordered my hahn catted dp, and i got the hahn 3in catback exhaust, been sitting in the garage for a month still in the box, now i can finally get it all on, from what I hear it should sound amazing, and you might notice some gains until the learn down kicks in on it
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Old Jul 19, 2009 | 12:46 PM
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From: Lee's Summit MO
Originally Posted by BartSS
You won't get any gains from it until you tune the car. The catback is good on our cars its the downpipe that's really restrictive
not true you wont get any gains from exhaust unless you change that damn down pipe
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Old Jul 19, 2009 | 12:50 PM
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FutureEcotecOwner's Avatar
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From: Clarksville
Originally Posted by revhigh18
not true you wont get any gains from exhaust unless you change that damn down pipe
Realistically, will you be able to feel any difference once you get rid of the stock DP? Like once I get my catless DP installed will I feel more power?
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Old Jul 19, 2009 | 07:27 PM
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From: Chicagooooo
Once your catless dp goes on and you tune it the turbo will spool up a lot fater and you will see a hell of a difference. When you take the stock downpipe off you will see what I mean by restrictive compared to the hahn
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