exhaust info needed
Thread Starter
Melting Slicks
Joined: Sep 2007
Posts: 2,387
Likes: 123
From: CA.
exhaust info needed
hi all, i have a 94 LT1 with 14k miles and i am usually a fanatic with originality but my stock exhaust is just too quiet. im looking for advice on what my options are. i dont want really loud but something with a nice rumble. can i just change mufflers without disturbing my stock exhaust? if so do i have to do anything as far as with the computer or anything like that or is it as simple as just changing mufflers? ( just read factory mufflers are welded on so if that the case i will leave stock ones on) opinions please, thanks, Nutsy
Last edited by nutsy; Dec 3, 2016 at 10:39 AM.
Le Mans Master
Joined: Jun 2009
Posts: 6,528
Likes: 752
From: South Dakota
There is no computer changes needed for new mufflers or cat back exhaust.
The stock mufflers are welded on, but are easily replaced by cutting the pipe.
As for muffler/pipe choices,
I have tried the eliminator pipe and I love the sound at idle, but it is probably not what you want because it is loud if you give it any throttle.
I have heard the magnaflow replacement mufflers and they may be a good choice for you. They have a deeper tone, but not too much louder.
For a lot more money there are cat back systems that sound pretty good. I currently have a Corsa and Borla systems on mine. Both sound better than stock, but neither is real loud. There are many other choices too.
The best is to try to go to some events or club meetings and actually hear what different setups sound like and what the owners think of them. Sound clips on the internet do not sound right to me and I could not base a choice off of them.
Good luck.
The stock mufflers are welded on, but are easily replaced by cutting the pipe.
As for muffler/pipe choices,
I have tried the eliminator pipe and I love the sound at idle, but it is probably not what you want because it is loud if you give it any throttle.
I have heard the magnaflow replacement mufflers and they may be a good choice for you. They have a deeper tone, but not too much louder.
For a lot more money there are cat back systems that sound pretty good. I currently have a Corsa and Borla systems on mine. Both sound better than stock, but neither is real loud. There are many other choices too.
The best is to try to go to some events or club meetings and actually hear what different setups sound like and what the owners think of them. Sound clips on the internet do not sound right to me and I could not base a choice off of them.
Good luck.
Burning Brakes
Joined: Jun 2013
Posts: 1,076
Likes: 148
From: Hunterdon Cty NJ
I not sure how different a 94 is from my 91 but I noticed on my stock mufflers that the inner tailpipes were not fully open, just a small dime size opening in the middle. I was able to use a long drill bit to make some holes then use a big punch to open up the holes. It's not a huge difference but it is an improvement until I can get something else.
Burning Brakes
Joined: Jun 2016
Posts: 761
Likes: 66
From: Fitzwilliam New Hampshire
Replacement mufflers are available.PO of my 94 BASE converted to flowmasters,a bit loud but nice on highway.I like them, Installation looks good, no leaks,new ones welded to pipe.They have factory type hangers.
Last edited by A Peter C4; Dec 3, 2016 at 06:55 PM.
Team Owner
Joined: Jul 2004
Posts: 28,485
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From: Hartford WI
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Michael S. Palmer
Team Owner
Joined: Jul 2004
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From: Hartford WI
Former Vendor
Joined: Jan 2015
Posts: 412
Likes: 64
Nutsy, our Street axle back #15623 will do a great job at bringing out the deep vette tone without compromising your ride comfort. The volume level at cruising speeds is just slightly louder than stock, which makes it perfect for cars that are driven daily. You can find more info on this system at the link below. Let us know if we can answer any questions!
http://www.magnaflow.com/products?partNumber=15623
http://www.magnaflow.com/products?partNumber=15623
Burning Brakes
Joined: Jun 2016
Posts: 761
Likes: 66
From: Fitzwilliam New Hampshire
Instructor
Joined: Oct 2016
Posts: 211
Likes: 20
From: Raleigh NC
I love the sound of my Magnaflows except when they are droning. They seem perfect. When you get on it they sound awesome. When cruising down the highway they are not loud at all.
When I get some time I'm going to research the droning again. Seems like I remember finding something about 1 or 2 3" washers welded in (one on ea. side). If I can get rid of the drone it will sound perfect all the time.
When I get some time I'm going to research the droning again. Seems like I remember finding something about 1 or 2 3" washers welded in (one on ea. side). If I can get rid of the drone it will sound perfect all the time.
Burning Brakes
Joined: Oct 2000
Posts: 818
Likes: 29
From: Nashua NH
Resonators on a 90? What are you refering to as a resonator on a 90. The 92's on up, I believe have a resonator, but I'm not aware of any resonator on the L98's.
Last edited by 91 black convert; Dec 5, 2016 at 09:06 PM.
Team Owner
Joined: Jul 2004
Posts: 28,485
Likes: 3,291
From: Hartford WI
Ricers are trying to sound like some huge engine has been stuffed in it. Even some American muscle cars are getting into piping the engine noise to make you think it has power. I'm not sure I see much of a difference in principle other than one car is made by Honda and the other by GM.
Drifting
Joined: Mar 2011
Posts: 1,693
Likes: 144
From: on Barnegat Bay Joisey
Some folks call them precats which I think is an error. They are located in the front Y pipe, one on each side. My '74 with the original factory exhaust also has them. They're about half again as big as a coffee can.
Advanced
Joined: Jun 2016
Posts: 90
Likes: 13
Exhaust sound
I removed my precats on my 87 coupe with L98, still too quiet. What if I took off my main cat. And put true dual pipes to the back. How much louder does it get with no cat. Up here in Canada where I live we can run without cats.....My corvette sounds like a k-car with what I have. I have magna flow mufflers on the back..thx...ol vette
Last edited by Ol Vette; Dec 6, 2016 at 10:48 PM. Reason: Spelling error