2021SexyMaxAT4
New member
Loving the fuel efficiency of this baby Duramax. Have some things in the works and will post in the other forum with pics etc. so excited to getting around to make this a sexy baby diesel.
2021 AT4 Baby Dis
- Thread starter 2021SexyMaxAT4
- Start date
Regular Cab Duallies
"RCD"
Heck yeah! Looks like the kid approves of your engine choice 
2021SexyMaxAT4
New member
Haha he does. Says he likes my new truck over my old truck haha. Had a 2020 LT Trail Boss with Borla and some AFE stuff too.
Regular Cab Duallies
"RCD"
So, when are you going to tell us what the plans are?
2021SexyMaxAT4
New member
Sorry. New to forums. I posted elsewhere haha.
Looking at either a BDS 2.5” lift, Bilstien 6112’s up front with 5160’s in the rear.
banks Derringer (once released this summer) with their throttle device and two iDash gauges.
find a shop to make custom exhaust to follow into the factory tips that I did in black.
then adding the AFE hot/cold charge pipes along with an S&B CAI.
Once all that is done it will be time for tires. I currently am picking truck up tomorrow from getting the stock 20’s powder coated in a satin black on stock tires. Adding the Bora 1.5” wheel spacers for the meantime. Then will find the best wheel/tire combo at that time.
2021SexyMaxAT4
New member
I call her SexyMax21.
I have a 2021 White AT4 with the 3.0 Duramax. It’s so sweet, not much under the hood yet out there. Current mods done to exterior: de-badged just to buff, polish, ceramic coat and seal (used all Chemical Guys Ceramic package). I then added black GMC front and rear emblems back on (outline is a...
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