Chambered Exhaust System
Thread Starter
Melting Slicks
Joined: Nov 1999
Posts: 2,372
Likes: 227
From: N Cal
Chambered Exhaust System
I am thinking about buying the chambered exhaust system for my 72, 350CI Shark that Corvette Central has for $350.00. Has anyone installed one of these systems? Any performance increase? What's the quality like? Is it too loud at cruising speed?
Thanks!
:cheers:
Thanks!
:cheers:
Tech Contributor
Joined: Aug 1999
Posts: 15,160
Likes: 3,965
From: Connecticut, USA
Re: Chambered Exhaust System (l2vette)
I have a chambered system on my 69 350 w/ 4 spd. It has an H pipe on it and sounds ok but I wouldn't buy another one. I had to have a shop re-bend the pipes for them to fit and the the system is restrictive. For the cost of this system a local shop could have fab a tighter fitting system with Flowmaster mufflers for much better performance and sound. Just my opinion.
Gary
Gary
Burning Brakes
Joined: Apr 1999
Posts: 797
Likes: 1
From: EUNICE, La
Re: Chambered Exhaust System (gtr1999)
Had the Allens system on a 70 coup 454 and it was too loud. I would never buy another system like that. It is also a HP robber!! I think a good turbo muffler or flow master would be a better setup, sound and horse power wise, only my opinion! Thad
Thread Starter
Melting Slicks
Joined: Nov 1999
Posts: 2,372
Likes: 227
From: N Cal
Re: Chambered Exhaust System (gtr1999)
I may have to reconsider my choices. The chambered exhaust system does reqiuire alot of extra pipe connections that probably should be welded instead of clamped. Hmmmm.......I'll have to think this over.
Thanks for all the responses.
Thanks for all the responses.
Pro
Joined: Aug 2000
Posts: 713
Likes: 1
From: plymouth mass
Re: Chambered Exhaust System (l2vette)
Hi 12Vette: I have had a Mid America Chambered Exhaust on my header equipped 73 for about three seasons now. Yes it's a little loud but for a play car I thinkit's great. My system fit perfect, I had a speed shop bend up some header hookups. My system doesn't have anymore joints than a stock system, and on the plus side you don't have to look at those ugly big mufflers out in back. The system on my car rumbles a idle , full throttle is loud, highway not bad (yes you can listen to the radio). I think you should try to listen to an installed system to be sure . Good luck. Chuck D
Senior Member since 1492
Joined: Aug 2000
Posts: 87,922
Likes: 156
From: Just because I'm paranoid doesn't mean people aren't out to get me...
St. Jude Donor '09
Re: Chambered Exhaust System (chuck d)
MAD system for $299. Nicest sounding exhaust I've heard in years.
here's my opinion http://temp.corvetteforum.net/c3/the...t/index4.shtml
[Modified by 1970 Stingray, 5:22 PM 9/5/2002]
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Drifting
Joined: Nov 2000
Posts: 1,428
Likes: 0
Re: Chambered Exhaust System (TNT)
It is also a HP robber!! Thad
Safety Car
Joined: Apr 2001
Posts: 3,581
Likes: 28
From: Spring, Texas
Re: Chambered Exhaust System (l2vette)
I have an Allen's system on my Vette, but no H-pipe on it. It's loud (all RPMs), but sounds too good to revert back. No dyno info to prove it, but feels like there was no impact to HP/performance.
Racer
Joined: May 2000
Posts: 386
Likes: 0
From: Niedernhausen, Germany
Re: Chambered Exhaust System (Geoff1340)
Got it on mine and I love it. Gained some horse-power.
Note that there is a BIG difference in sound between combination with headers and stock ram manifolds: It is way louder with headers. Over 3500 with WOT, it really screams - but I love it.
If you have got headers, someone must tailer the section between headers and joint through transmission crossmember as this cannot be supplied.
Also note, that you need the hanger-bracket (near the transmission) for the 454-big-block cars (which came with 2,5" tubes from the line) to center the system in the crossmember holes properly. With the 2" hanger, the tube will touch the crossmember during engine movements, thus resulting in a clonk every now and then (took me some time to figure that out...).
Oh, and the supplied hangers at the very rear..... forget about these cheap metal straps! Mine came down within one weeks intervall after a couple of months. That material is just too weak. Better replace it with stronger straps right away to keep you from an embarrasing moment (of course had a nice chick beside me when it happened... )
After all, one of the best investments on my Vette!
Note that there is a BIG difference in sound between combination with headers and stock ram manifolds: It is way louder with headers. Over 3500 with WOT, it really screams - but I love it.
If you have got headers, someone must tailer the section between headers and joint through transmission crossmember as this cannot be supplied.
Also note, that you need the hanger-bracket (near the transmission) for the 454-big-block cars (which came with 2,5" tubes from the line) to center the system in the crossmember holes properly. With the 2" hanger, the tube will touch the crossmember during engine movements, thus resulting in a clonk every now and then (took me some time to figure that out...).
Oh, and the supplied hangers at the very rear..... forget about these cheap metal straps! Mine came down within one weeks intervall after a couple of months. That material is just too weak. Better replace it with stronger straps right away to keep you from an embarrasing moment (of course had a nice chick beside me when it happened... )
After all, one of the best investments on my Vette!
