I had originally installed the GMPP catback on our 22 Denali and it really wasn’t much louder than stock so I swapped the muffler out for a Corsa Pro Series muffler (CP300CT) and left the rear resonators in place. There’s a couple of videos on my YT channel of how it sounds.
Looking at this one. I haven’t seen any aftermarket grilles that aren’t the “Denali” style. This is almost the same price as an OEM though. That’s why I’m leaning towards just color matching this one.
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The wife’s 2018 Yukon
2” level with 285/70/17 BFG KO2s on some 17x8.5 Method Racing 305 NVs
Planning on either color matching or replacing the grille with a blacked out Denali grille.
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My wife’s 2016 LT
Before
After
17x9 Raceline 935 Defenders
LT285/70/17 Falken Wildpeak ATW3s
2” level
Minor rub
I’ll probably lift the front end another .5” with Bilsteins.
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