How might I remove the speed limiter on my 05 LLY I have the Edge with Attititude and a 4" straight through Exhaust. What other thing might I get to remove this ?

Also under WOT I get a goood surge like PSHHH PSHHH PSHHH what might the problem be with this? Truck has about 5000 Miles on it.

Thanks guys I am new at this Deisel game so your patience is appreciated.

Most all the tuners that reprogram your ecm have this. Predator, Quadzilla, Hypertech, etc... On the surgeI would think fuel filter or possible sucking air at the fuel filter boss. Have your dealer check your fuel vaccum. Take your box off first.