[Hart_Rod]

Originally Posted by 67ChevyRedneck

Rob, I was thinking about doing the same thing. Do you have PN for the "GM touring" version??

Is it the same as this one?

https://www.ebay.com/itm/Borla-Silve...RaUGdE&vxp=mtr

No, that's the one you can get directly from Borla and it's dealers. Borla makes a slightly different setup for GM. Here are the part numbers I used:

Exhaust: 19303341
Tips: 19303347

The GMPP exhaust contains a "flapper-valve" that is supposed to stop the drone created when the truck switches from V8 to V4 mode.

Cheapest place I found them:
https://www.shopchevyparts.com/silve...3113_3124.html

Good thread:
http://www.gm-trucks.com/forums/topi...xhaust-system/