R rjp3526 New member Mar 16, 2010 #1 so what would be the simplest/easiest and lowest cost ways to bump that HP up to 400 or more? the trucks already have factory 4" dual exhaust - thinking the free flow air intake systems, a performance chip, any thing else ?
so what would be the simplest/easiest and lowest cost ways to bump that HP up to 400 or more? the trucks already have factory 4" dual exhaust - thinking the free flow air intake systems, a performance chip, any thing else ?
