I made a few changes to my truck this year, I completed the intercooler and gauge installation, put a 3" crossover pipe in, a 3" turbo downpipe, and Kennedy's boost controller.
Wow!!!, what a difference pulling a load. Places where the PCM pulled fuel, The engine temp went up, and Lord knows what my EGT was, plus I lost about 25-35 mph, (belching black smoke), I can now go up, and maintain my speed, or possibly lose 3-5 mph,, with no smoke. Some hills I can even gain speed if I want or need to. I've put about 4,000 miles on in this configuration, and I am very pleased. I haven't seen an EGT temperature over 1000