I ordered a new Magna Flow direct fit cat, and a Gibson Cat-Back Exhaust system today for son's 99 ZR2 Blazer. Great deal from Auto anything.com. OEM parts are trashed. Cat is raddling. He should really like this new sound......

 

I think your son will be quite pleased with the Gibson exhaust. I just got back from having their cat-back system installed at my friend's muffler shop, and it sounds great. At idle it has a low, mellow authorative tone that remains smooth throughout the rpm range - and no resonant "drone" while cruising. It's not obnoxiously loud, and doesn't do the "pop pop pop" on deceleration like you hear from many S-10/Blazer exhaust installs. Although the tailpipe is clamp-on I would recommend having it welded to prevent the possibility of an exhaust leak in the future.

 

Well we got the Gibson cat back installed, along with the Magna Flow high flow cat. Man what a difference! Great deal we got from AutoAnything.com. $415.00 shipped to our front door. Really sounds nice, but is not loud inside the cabin.....