Well last week I installed a 4" exhaust from JC Whitney and could definitely feel and hear the difference. The power increase although mostly likely modest is definitely noticeable. My Kennedy inter-cooler arrived this morning...
So i look forward with earnest to see how well it turns out with the cooler and installing new injectors, moving the FSD to an external mount and adding the boost controller. Thanks for the input, ill keep ya posted...
Respectfully,
Robert P.
1999 Chev Silverado C3500 Crew cab dually long bed 4x2 - 6.5L Diesel, 4L80E / 4.10 gear.
4" Exhaust
Kennedy gauges
Kennedy Inter cooler
TD-MAX Boost Controller
U.S. Diesel Performance ECM
U.S. Diesel 40HP injector Kit
150,000+ miles
Pulling - 2013 Montana Mountaineer 346LBQ fifth wheel (12840# empty)