Is there a chip or something that I can put in my 2018 Silverado 2500HD that will wake it up and move the rev limiter a little higher. And it would be great if it also would make the tranny work without rev matching before it down shifted. Probably EPA requirements but I'd like it to work like my 2001 did. Let me blow it up on my own. Darn thing won't go over 100mph like it is which can cause major problems passing a string of cars. Got to be a chip for for what I'm looking for or another site that deals with this kind of stuff. Oh, it's the big gasser.

 

Pretty sure a professional tech can help you reprogram it for higher speeds. Even my Cavvies would do 122 mph stock..

 

We have a same problems with our truck. Pull a trailer that’s roughly 3000lbs and it’s a 6.0. It’s very sluggish, I have a 2019 Ram that pulls a 6000lb ice house better than our work truck which is a 2018 2500 6.0.

It needs more get up and go and better shift points, it will sit in a gear for a long time without shifting, you have to hit the gas pedal hard to get it to get out of a gear.