Corsa install difficulties
Instructor
Joined: Sep 2006
Posts: 220
Likes: 0
From: Castleton NY
This may or may not be helpful, but make sure you are starting at the rear of the car and working toward the engine....mufflers first, then Y pipe, then to the cat. Keep it all loose until it is all on. A lot of cat back systems don't fit right if you start at the cat and work back.
Melting Slicks
Joined: Mar 2003
Posts: 2,472
Likes: 0
From: Toronto ONTARIO
Originally Posted by ODIVETTE
This may or may not be helpful, but make sure you are starting at the rear of the car and working toward the engine....mufflers first, then Y pipe, then to the cat. Keep it all loose until it is all on. A lot of cat back systems don't fit right if you start at the cat and work back.
But anyhow, Don't feel alone. This is absolutely normal for exhaust systems. if some people just bolt it up and say it fits fine so be it. I've seen people say that and their tips are crooked and they stick out different lengths from the bumper and all sorts of other stuff is wrong. It all depends how much you pay attention to the little details. I'm picky, and I've already been through 3 exhaust systems and the last one is yet to be done. I've taken it back 3x already and the shoppe who installed it is working with me to get it where we want. And yes , he does use spacers under the diff and between other places to get the pipes where we want. It makes a BIG difference. I'm not sure about the corsa but the B&B can be adjusted and moved a million ways and you'll always get different positioning with the mufflers. Just takes time, patience and a good eye. good luck !
Safety Car
Joined: Apr 2003
Posts: 3,793
Likes: 9
From: VA
Originally Posted by resipsa
The car is not messed up and I am not doing something wrong.
How far are your center muffler outlets from the diff?
Safety Car
Joined: Apr 2003
Posts: 3,793
Likes: 9
From: VA
Originally Posted by ODIVETTE
This may or may not be helpful, but make sure you are starting at the rear of the car and working toward the engine....mufflers first, then Y pipe, then to the cat. Keep it all loose until it is all on. A lot of cat back systems don't fit right if you start at the cat and work back.
Instructor
Joined: Sep 2006
Posts: 220
Likes: 0
From: Castleton NY
Actually, Diel, you might want to re-read what I wrote. It does make sense...just not to you...a friend told me about his Corsas and just passing it on. Another tip - go Borla...they fit the first time
Thread Starter
Racer
Joined: Mar 2005
Posts: 399
Likes: 2
From: Newtown PA
Originally Posted by Vis Croceus
If you know that, then what is the point of the thread? If you're just venting, then take it to OT...
Roughly 1/2"
Roughly 1/2"
Thanks for the info.
Melting Slicks
Joined: Mar 2003
Posts: 2,472
Likes: 0
From: Toronto ONTARIO
Originally Posted by ODIVETTE
Actually, Diel, you might want to re-read what I wrote. It does make sense...just not to you...a friend told me about his Corsas and just passing it on. Another tip - go Borla...they fit the first time
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Thread Starter
Racer
Joined: Mar 2005
Posts: 399
Likes: 2
From: Newtown PA
I completed my Corsa install this weekend. I attached the bottom of the center muffler rear spring hangers to the top of the center muffler mounting flange (instead of "scoop" mounting the flange as intended by GM) to gain adequate clearance at the diff and everything lined up fine. I doubt that this will ever pose a problem.
The Corsa eliminated the nasty resonance that I had with the flowmasters and the entire exhaust note sounds better to me especially as the engine revs past 4000 rpm. I'm very surprised as to how quiet the exhaust system is even with the LT headers. I was expecting it to be at least as loud as my stock exhaust system/manifolds in my '02 Z06. It is definitely quieter than the Z at all throttle settings. Overall, I am happy with the system.
One thing that I noticed after I drove the car was that the tips on both mufflers appear to extend out past the bumper farther (about 3/8 inch). I assume that this happened when the system got hot. I thought something had moved, but everything seems tight and looks to not have moved. Is there that much heat expansion with stainless? If not, maybe the engine mounts are allowing some fore and aft movement of the engine? If so, is this normal? I did not notice this with the OEM tips, but I never really paid attention to them.
The Corsa eliminated the nasty resonance that I had with the flowmasters and the entire exhaust note sounds better to me especially as the engine revs past 4000 rpm. I'm very surprised as to how quiet the exhaust system is even with the LT headers. I was expecting it to be at least as loud as my stock exhaust system/manifolds in my '02 Z06. It is definitely quieter than the Z at all throttle settings. Overall, I am happy with the system.
One thing that I noticed after I drove the car was that the tips on both mufflers appear to extend out past the bumper farther (about 3/8 inch). I assume that this happened when the system got hot. I thought something had moved, but everything seems tight and looks to not have moved. Is there that much heat expansion with stainless? If not, maybe the engine mounts are allowing some fore and aft movement of the engine? If so, is this normal? I did not notice this with the OEM tips, but I never really paid attention to them.