Hey guys, I'm a newbie to the forum, and got a couple of questions about performance parts for a 2004 Terminator. I was wondering which handheld tuner (diablo or sct) produces or creates the best horsepower? Anyone running the SLP loudmouth exhaust? How is the 4" JLT intake? Who has the best pulley kits (pulley, installer, etc...)? Thanks for any info.