C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

manifolds back system?

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Old Nov 20, 2006 | 01:11 PM
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Default manifolds back system?

I've been looking for an exhaust sytems for a time now. I see a ton of bits and pieces but haven't found a "complete" system yet. Any sugestions? I'd like to find something that bolts to the existing manifolds and deletes the pre cats and has a single high capacity cat and the rest down to the exhaust tips. Quieter the better.. Any experiences appreciated. Would consider mixing parts as long as all is compatible and FITS without having to cut/weld.. Arlon
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Old Nov 20, 2006 | 01:13 PM
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Originally Posted by Arlon
I've been looking for an exhaust sytems for a time now. I see a ton of bits and pieces but haven't found a "complete" system yet. Any sugestions? I'd like to find something that bolts to the existing manifolds and deletes the pre cats and has a single high capacity cat and the rest down to the exhaust tips. Quieter the better.. Any experiences appreciated. Would consider mixing parts as long as all is compatible and FITS without having to cut/weld.. Arlon

stock manifolds are really bad imo. if u do exhaust, do it right!
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Old Nov 20, 2006 | 01:14 PM
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Originally Posted by Arlon
I'd like to find something that bolts to the existing manifolds and deletes the pre cats and has a single high capacity cat and the rest down to the exhaust tips.
They sell catless front y pipes.

http://www.madvet.com/shop?frame=3.36.971

You need to get your own main cat and mufflers though.

And if you want quiet, they have this.

http://www.madvet.com/shop?frame=3.119.976
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Old Nov 20, 2006 | 01:46 PM
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I bought the front Y from MAM, it was "mangled" a little so sent it back and had a custom exhaust shop in NJ bend & weld up a very nice front Y.

I recommend a good local shop for that job.
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Old Nov 20, 2006 | 01:48 PM
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Originally Posted by 65Z01
I bought the front Y from MAM, it was "mangled" a little so sent it back and had a custom exhaust shop in NJ bend & weld up a very nice front Y.

I recommend a good local shop for that job.
True, you get a better fit that way, but he wants not cutting/welding.
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Old Nov 20, 2006 | 02:48 PM
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Originally Posted by 86PACER
True, you get a better fit that way, but he wants not cutting/welding.
Last time I had a "custom" exhaust system done buy someone that came recommended by a dozen people it almost ended up in court. It was such a poorly thought out, expensive, unserviceable piece of rusted garbage. It really turned me off of the idea of ever having a "pipe bender" touch one of my cars again. I'm sure there are some good ones out there I just have to see some of their work first. It will take some history before I trust a "bender" again.
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Old Nov 20, 2006 | 04:57 PM
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Sorry to hear of your misfortune with that shop.

I took my Vette to Mufflex in Trenton, NJ and their guys are artists with forming SS pipe.

Recently I had some clowns at a local Midas shop f--k up a simple job on the stock exhaust of my '88 IROC; took 4 guys over 4hrs but they managed to screw the pooch horribly. OK, off to Denny and his guys at Mufflex; 20min later his guy had her whisper quiet.

I would suggest getting a referal from the local drag strip. A shop that the guys trust must maintain a good rep as their custom work depends on it.

Good luck with getting a nice exhaust on your Vette.
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Old Nov 20, 2006 | 05:53 PM
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Originally Posted by 86PACER
They sell catless front y pipes.

http://www.madvet.com/shop?frame=3.36.971

You need to get your own main cat and mufflers though.

And if you want quiet, they have this.

http://www.madvet.com/shop?frame=3.119.976
You can get the high flow bolt up main cat and a rear Y pipe as well from www.madvet.com. In other words order all five pieces and the clamps from the same place and you will have a complete system.
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Old Nov 20, 2006 | 08:57 PM
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I replaced the front Y pipe on my `87 with a later model one that did not have the precats, & then put a Magnaflow cat back on it. No probs.
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