Just ended up with a 2004.5 2500 and and want to upgrade the turbo (and lots more). Is there any aftermarket turbo or wastegate kit that comes w/ a programmer that gets rid of the electronic wastegate programming all together or do I just use a boost fooler? Any info would be great.

 

With my II SPS66 I have a jumper from II on the wiring harness, this keeps the ECM happy with the circuit that controlled the electronic wastgate. After that it is manual wastegate on the turbo and boost fooler of some kind for the ECM (TST in my case).