Put a dual setup on a good buddy's Silverado last weekend. Kit came absolutely complete, nice heavy duty stainless clamps, every part fit perfect....probably one of the nicest aftermarket kits I've seen.
And it sounds awesome. Not my taste for a Jeep but nice and throaty for a pickup. They do make different resonances and you can hear them on their website.
I would definitely consider this setup for my own.
i put mine on this winter , started out kinda low just did not seam to be much more sound than my stock crused muffler set up... but now that I have the top off and its broke in ... sounds a lot better, low and mellow ,,, I think its a good deal for the price, I didnt want it to sound like a log truck ,just a good rumble , ... easy installation fit right to the stock brackets hardest chore was removing the stock set up ,16 years of use had just about welded it together .
Rockauto.com Dynomax P# 17309 $162.89 plus shipping.
Ebay Seller carpartswholesale Dynomax P# 17463 $132.20 $8.07 Shipping
Carpartswholesale sells a few other part numbers that are all good for the rebate.
Ebay seller discountbodyparts sells a few as well.
I had a Walker Dynomax setup on my 96 Ram and it sounded really nice. Not too loud, not too soft. I put the cat-back system on my 95 YJ and it sounds okay. It would sound better if I didn't have a crack in the manifold though.
Whoever said "Money can't buy happiness" didn't know where to shop.