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Currently I have stock manifolds and stock transverse system. What I want to do is leave my stock exhaust manifolds but upgrade the rest of the exhaust. What I would like is a 2 1/2 exhaust from the manifolds to two mufflers with stock appearing stainless tips that exit at the rear below the bumper. Is there a system out there that fits this description? If so part number please. If not any suggestions.

Best suggestion is to go find a good exhaust shop and have em bend you something up. Near me we have a custom shop in southern naperville, they do "factory vintage car" exhaust systems of all types that are sold through many resto houses, but they also do a lot of performance custom work, and they can even mandrel bend stainless tubing!

They once quoted me $1200 for a system. I didn't buy it, too many $$$. It would have been a work of art though.

On the more realistic approach, firstly the outlets on your manifolds are not 2 1/2", they are 2 1/4" I believe, maybe even 2". So some fancy work of some sort there to go to 2 1/2.
Flowmasters 69 tailpipes are gorgeous, 2 1/2", mandrel bent, with welded on polished stainless tips. Very close to factory in appearance. But they don't sell them separately anymore, only with the American Thunder exhaust system. It's an H pipe system, not an X, and the flowmaster muflflers make your car sound like a mustang (to be gentle)

Borla mufflers have a very nice sound. Magnaflow is not bad and less expensive.

After near a lifetime of trying, I've finally beaten the header leak blues. I run hooker ceramic headers with earls carbon fiber gaskets and stage 5 locking bolts. Borla muffers, flowmaster tailpipes, and the center section was custom made, x pipe and tucked up into the tunnel above the hotchkiss convertible floor brace.

These pics were taken at the shop while the x pipe center section was being built. when I got her home, I did pull the whole system down, dress all the welds, and apint with hi temp silver. System has been in place untouched since july of '08.

"But they don't sell them separately anymore, only with the American Thunder exhaust system. It's an H pipe system, not an X, and the flowmaster muflflers make your car sound like a mustang (to be gentle)"

Wow Jim, I come home after a roughly 14 hour day to find you think my car sounds like a "Mustang" I'll have to find some free time (HA HA) and shoot a little video for the Burnout thread, just to see what the members think. Any South Siders up for taking some video sometime Sat the 12th? I have a rare Sat off.

Mustang,........ Man you know how to take a giant dump on a Man's evening.

I'm sorry Don, and everyone else running 'flows.

I ran them for many years too, that's how I got those tailpipes.
I've spent many years listening to them "drone on down the highway."

JK Jim, the came with the car when I bought it and drone is a good word for it. I do like them at idle & accelleration though

Thanks for the replies. I really want to keep that stock look under the hood but get a less restrictive exhaust. Do you guys think I would get HP gain and better performance if I went to a 2 1/2 chambered exhaust system?

Mark, is your car a small block or a big block?

BB manifolds are 2 1/2". Small blocks are 2 1/4"

Small block, but Pypes sells a down tube that goes from 2 1/4- 2 1/2.

Here is my new brainstorm, I like the tailpipes from the Flowmaster American Thunder system and since you can't buy them seperate anymore I was going to buy that kit and try to us the down pipes from Pypes (DGU14S) and connect both systems. Remember I am keeping my manifolds. I just don't know if they will bolt up together. I know some trimming would be in order, that I can do in my garage, but obviously can't bend up 2 1/2 in pipes if needed.

I'll bet you could make that work.

How do you think it would sound being hooked up to exhaust manifolds?