best C6 catback exhaust
Burning Brakes
Joined: Aug 2008
Posts: 802
Likes: 6
From: Oro Valley AZ
I put a ZO6 3' exhaust system on my '07 couple with NPP mufflers and a NPP in a box switch. Got great sound when you want it and quiet when you need that as well. Not real expensive, still has the appearance of being stock and you'll pick up some nice HP.
Le Mans Master
Joined: Jan 2002
Posts: 5,892
Likes: 1,200
From: Ft. Myers FL
Get GHL's. If you want great quality for an excellent price..get the "Street Series". If you want loud, but not obnoxious. get the "Race Series". Better prices, quality and sound....
period! 
To me it's no contest.
period! To me it's no contest.
Race Director
Joined: Jul 2000
Posts: 16,511
Likes: 2,400
From: Out Where the Buses Don't Run, Eglin AFB/ Niceville FL
2025 C8 Z06/7/E-Ray of the Year Finalist - Unmodified
2022 Corvette of the Year Finalist -- Modified
2021 C6 of the Year Winner - Modified
2020 C7 of the Year Finalist -- Modified
2020 C6 of the Year Finalist - Modified
Asking which cat back is the best is like asking which super model is the hottest. You'll get a thousand different opinions. As was said earlier, listen to as many different systems that you can and make your choice from that. NPP is probably your most livable option. Corsa makes a good system but they sound like a boat to my ears.
I chose Borla Sport (aka Stinger). I had them on my C5 and I'm running these with LG long tube headers on my C6. Muscle car sound without the drone. 2006 A6 vert.
I chose Borla Sport (aka Stinger). I had them on my C5 and I'm running these with LG long tube headers on my C6. Muscle car sound without the drone. 2006 A6 vert.
Drifting
Joined: Oct 2006
Posts: 1,569
Likes: 4
From: Phoenix AZ
St. Jude Donor '09-'10-'11
Nice exhaust tone
Corsa sport with x-pipe. If you're looking for performance gain from your exhaust and an awesome sound, LG Pro Long Tubes and Hi-flow cats and it'll sound like a bagful of bandits comin' at ya', and the increase in Torque will pull like a freight train if you can keep your tires hooked comin' out of the chute.
