yep, he goes to bed early - old guy He was up on chat earlier. Got a hold of him just after your post.

 

I would HIGHLY recommend Borla Pro XS mufflers, there was a comparison test from all the big muffler companies (flowmaster, magnaflow, etc , etc..) and borla flowed the most, and with the least amount of noise. you can prolly get some on ebay for a good deal.

 

i use a single in dual out flowmaster setup.it sounds nice and seems to add performance.....

 

Don't know if you have your mind made up already, but I got rid of a Gibson because of too much resonance (i'm very sensitive to noise), and that system supposedly has the least resonance of any system on the market. I traded in the Gibson for a Big Block Flowmaster 70 series.

The FM70 has zero resonance in the cab, and a healthy sound outside. Head and shoulders above the Gibson. At idle and cruising speeds (it really doesn't matter what speed - 30, 40, 60, 70, 80...) there is absolutely no resonance in the cabin, and actually very little sound to speak of at all. I would equate cruising sound levels to that of the stock system.

I don't know if there is a FM70 series for your application, but tell you what, drop a line to the guy I talked to, Casey (or muffman, as they call him on the Avalanche boards) and I'm sure he'll let you know if there's something comparable. He owns 5 or 6 exhaust shops in the Portland, OR area, and really knows his stuff.

If you're interested, PM me and I will send you his email address.