2500TB

I bet that's it!

My brand new 25 2500 6.6 L8T does the same thing on startup. I haven't tried taking it to the dealer yet.

Any update on how your mod has worked?

Any negative side effects of opening up that OEM scoop? Seems like a great idea

Right. I don't want it lowered like a car, i want it lowered like other HD trucks.

Yep. I tow a camper and other trailers. Didn't need the big wheels or lift though. I got a good deal on this truck so I jumped on it.

Looks like I can do this key adjustment for the front end, but I don't think I'll get 2" out of it. I don't want to put the control arms at a bad angle. https://youtu.be/7Tllh_CWAZk?si=UgA3m155EBYHNI8c

Thanks! What do I do for the front?

I know, this seems crazy, but I'm looking to lower the front and rear of my 2025 2500HD trail boss by 2". How would you reccomend going about that? I've never done anything like this before. I've tried searching around and I'm not finding much beyond someone who completely slams it down so the tires rub the wheel wells.