Had the GM/Borla Cat Back Exhaust installed on my 2018 Yukon Denali. That combined with the AFE CAI and that sucker screamed! Loved it...initially. Started towing and when the engine is under load, it was loud in the cab. Took out the AFE CAI and went with just the Dry S filter. That helped a lot with the decibel level. I guess I'm getting old and just want to enjoy peace and quiet while traveling so I'm looking to go back to stock on my muffler. I know I'll miss the rumble, but that's just where I'm at (today at least). GM Parts Direct has the stock setup for around $475. I thought if someone lived near me and wanted to swap my GM/Borla option for their stock option, we should make a deal. I'm near St. Louis.