I was very happy to let my 2017 Silverado Siren Red go earlier this year... every panel had rock chips on it. I also cracked the windshield before 10k... I know I'm in Alaska but my 2003 and 2011s were no where near this bad with the same conditions.
It's sad to say even with MSRPs jumping sky high the new normal is to have paint protection film installed for another $2k+ to make sure you keep your paint attached.
Mine seemed to be clear/color coat only, once the rock chips showed up it looked like primer/sealer underneath. Three Alaskan winters and I never saw any rust starting... not to say it wouldn't ever get there but I unloaded the truck before I had to worry too much. Good luck with the fix, hope it does well... When I drove a 2003 SIlverado from 2010-2012 I never even thought about paint chipping, rust, or any of that... now at 3 years old trucks look terrible.
If you're worried about the chips impacting resale value I wouldn't worry. My 2017 Siren Red Silverado had a chip in almost every panel... especially the doors, rockers, and leading edges... I sold it for almost as much as I paid new 3 years ago this summer and it didn't even come up in conversation, crappy paint it par for the course on new trucks apparently. I couldn't stand it but no one else even noticed. Time to fix up my 2006 Sierra and keep adding to the 284k miles on it.
I have on a previous generation truck. I put a Borla XR-1 3" welded in place of the stock muffler on a 5.3L Silverado and was very happy, deep tone, nice growl at WOT, no drone, and not obnoxiously loud.
I can't speak from experience on the 2019+ trucks but if it was me I would swap the muffler and see how you like it. If it's still too quiet you can delete resonator down the road. Someone has to go first... right?
I find that strange, what offset are the 20s? On OEM wheels my 2016 Suburban with a lot of miles (suspension has definitely settled some) fit the 275/60R20s from my truck without issue. 275/50s would be too small, stock size for the 20 spec'd Suburbans was a 275/55R20.
If you have aftermarket wheels the offset it likely your issue, either way get someone in the vehicle and turn the wheels both ways while you're outside to see where it's hitting. You may be able to trim/bend something out of the way or see if going up would help.
Here is my 16 with 275/60R20 BFG All Terrains, completely stock suspension with no rubbing.
I am, I think it looks great! No rubbing or clearance issues, been on the truck for 12k+ miles, completely stock. I load up with ATVs and firewood regularly and have no problems, you will notice the weight though... I lost a solid 3mpgs with the 20s and BFG KO2s.
Poor red truck had to sleep outside at -12 F... big brother needed some maintenance.
Stolen parking spot.... it was tough to push inside on snow and below zero by myself! ?
Your updates are right up my alley... debadge, tint, clean it up and make it look like nothing happened. I couldn't even tell those were 24s lol... thought they were 22, hard to tell on the T1s. The look is definitely working!
More details if you don't mind.... reps or take offs? 285/40s? Lowering shackles or stock suspension? 2x4 or 4x4? Truck looks amazing, best looking T1 I've seen so far. I'm trying NOT to go from my 17 to a 20 RST and you're not helping ?