Exhaust suggestions?
Thread Starter
Pro
Joined: Sep 2001
Posts: 542
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From: Stuck in the 80's
Exhaust suggestions?
Rear Y-pipe is beginning to rot, just noticed a good size hole on driver side. All original on there now with 54K miles. Looking for suggestions on replacement pipes. I imagine when I get to looking at the front Y and converter they will all need replaced soon so may upgrade all at once. No headers in the plan and I don't need to worry about emissions so a front Y without pre-cats is OK, but I will be keeping main converter.
Thanks in advance.
Thanks in advance.
Team Owner
Joined: Sep 2001
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From: Athens AL
C7 of the Year - Unmodified Finalist 2021
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Re: Exhaust suggestions? (gbody5)
Well you could go for a 2.5" mandrel bent front Y, then upgrade the main cat to a Random Tech, and use a flowmaster or Borla rear Y.
If you would buy a new catback altogether, it will come with a new rear Y.
Headers would still allow you to keep the main cat, in the same place. And longtubes come with a front Y if you choose.
If you would buy a new catback altogether, it will come with a new rear Y.
Headers would still allow you to keep the main cat, in the same place. And longtubes come with a front Y if you choose.
Melting Slicks
Joined: Jun 2002
Posts: 2,168
Likes: 16
From: Phoenix AZ
Re: Exhaust suggestions? (gbody5)
A big consideration is what level of noise you are comfortable with. Some guys like it loud, some don't. Since yours is a roadster this is an even more important question. I don't like a lot of noise and resonance. When I was looking to replace the exhaust on my '86 coupe I had first bought a B&B TriFlow. It was a noticeable performance increase but lots of resonance in a certain RPM range. I eventually removed the B&B and sold it after finding a stock '91 coupe exhuast in like new condition at a salvage yard. The '91 coupe exhaust has less restrictive mufflers than previous years which is good for another 5 hp, according to the Corvette "little black book". These mufflers were considered too loud to be used on the convertibles by GM, but they are pretty quiet compared to most aftermarket mufflers. I also used the front "Y" pipe which eliminates the pre-cats and a new Walker high flow catalytic converter. I'm very happy with this setup. It was fairly cheap, sounds great and performs better than with the OE parts.
[Modified by vetracer, 10:41 AM 9/21/2003]
[Modified by vetracer, 10:41 AM 9/21/2003]
Thread Starter
Pro
Joined: Sep 2001
Posts: 542
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From: Stuck in the 80's
Re: Exhaust suggestions? (vetracer)
Thanks for the suggestions. I really don't want it loud, it already has some resonance at low speeds since I changed to some of the stock appearing 'high flow' mufflers from Midamerica a few year ago after the stock mufflers fell apart.
I have been eying the front Y without pre-cats and either the Borla or the Dynomax rear Y pipe. Better prices other than Midamer or Ecklers?
Thanks.
I have been eying the front Y without pre-cats and either the Borla or the Dynomax rear Y pipe. Better prices other than Midamer or Ecklers?
Thanks.
