Truck - 08 F450, auto, 4x4, 4.88 axles, deleted, Mishimoto intercooler and pipes, Irate up pipes, minimax 80hp tune, factory HP turbo, KC 72mm S1 LP turbo. Truck is used to tow up to 16k lbs in the east TN hills. Just did a 850 mile trip through TN, GA, SC, and NC and am impressed with the performance. There is a noticeable lag from a dead stop, but it is completely acceptable for the performance once the turbo is lit. The lag is more noticeable with no trailer, just a slight load (empty gooseneck trailer) seems to negate the issue. The truck weighs about 10k lbs empty. I have a slight haze prior to lighting the turbo and then it’s clear. EGTs are hotter than stock with low throttle input and takes longer to cool below 400 after a pull, but everywhere else in the rpm range is cooler. A 3 mile 6% grade with about 5k lb empty trailer was the only spot I had to let out of the throttle to manage EGTs below 1300*. The truck was still running 60 up the hill. If you don’t like turbo whine, this may not be for you, but I like it. The entire fuel system on this truck is brand new. When towing at cruising speed (70 mph in this truck is 2600 rpm), the turbo is always lit! Rolling into the throttle to power up a hill is no issue, you don’t have to plan ahead, just roll into it at the base of the hill. My EBP indicates a little higher because of up pipes with no EGR pipe and indicates much faster than with factory up pipes. I’m seeing EBP to boost ratios of 2:1 in the lower rpm’s and decreasing to 1.5:1 with higher boost levels. I’m very happy with the setup.

Spoke with an employee prior to my purchase. Told me what he felt would be the best turbo for my needs. Did not try to sell me the most expensive but Instead what would suit me the best. Quick shipping as well.