I put a Corsa Catback on my wife's new 2023 GMC Yukon AT4 

‪@CORNYOTE‬installs a Corsa Performance Catback on my wife's new 2023 GMC Yukon AT4.
The little 5.3 LS goes from a quite and docile single 2.25 exhaust to a quad tip 3" monster!
Corsa is known for managing drone and this exhaust has none at all. It's the perfect combination. Quite cruising, but lets you know it's alive when the skinny pedal goes down! The wife was initially a hard sell, but she absolutely loves it now!! WIN/WIN!!
We replaced the rear lower bumper with one from a Denali, then add the Corsa Quad tips for an amazing look and sound!! Parts used are listed below:
Part Numbers 21127, and 21127BLK are designed to fit vehicles with Dual Rear Exit factory exhausts. If you have a Single Side Exit exhaust from factory the following parts* are required to allow installation of CORSA's DRE exhaust:
Floor Pan Heat Shield Floor Pan Heat Shield. Shield - SPA Wheel HT. Dual exhaust. Floor Pan Heat Shield. (P# 84688688 QTY: 1)
Nut. Shield. (Rear) (P# 11548585 QTY: 5)
Bolt. Transmission. Mount. (P# 11589166 QTY: 1 or 2**)
Exhaust System Hanger (Rear) (P# 84976677 QTY: 1) [Prev: 23388785]
Exhaust System Hanger (Front, Rear) (P# 23388784 QTY: 1 or 2**)
NUT. Bracket. Bumper. (P# 15672093 QTY: 2)
Bumper Cover (Lower) Bumper Cover. Fascia. Bumper Cover. Dual exhaust. (P# 84751055 QTY: 1)