My brother purchased a new bodied 07' GMC CC Z71 (5.3L).
Anyways, are there any of you guys out there that have any experience with a good deep throaty sounding dual rear exit (under the rear bumper) exhaust kit out there for the new trucks?
I remember Corsa having problems with with whistling at high rpms on the new trucks.
Any other quality options?

Jim

 

I would just take it to a shop and have them put something together. In most cases it is cheaper than ordering a catback.

 

It may be cheaper, but so is the out come for the most part. I would rather stay away from custom exhaust kits. The prefabbed kits have always been of top notch quality from my previous experiences with Magnaflow, Bassani, and Corsa. Their bigger piping and high quality mendrel bends are always welcome. The fit and finish of all the previous kits I've owned have been perfect.
Majority exhaust shops will only offer mendrel bent aluminum pipe. I'd rather it all be stainless steel hardware. Not many shops offer stainlees steel custom exhaust parts other than the muffler.

Anyone else?

Jim

 

What I plan on doing is buying all my custom exhaust parts from stainless steel works and then having a local shop fab it up. From what I've read SSW have great quality parts

 

The corsa I have sounds great no drone no whistle.