Mine was basically stock when I bought it @ 96k miles, it had the exhuast done and the guy that had it before me had the edge evolution on it. Then about 2 months after i bought it, i noticed coolant leaking down the backside of the engine...took it in, egr cooler fail, also noticed a nice hole burned in the downpipe, so that was replaced. A few months later, I was towing my buddies boat to the lake for him, i noticed a funny smell comming from the front end of the truck....got poking around under the hood, and noticed in my coolant tank I had a grayish, brownish milkshake in my coolant tank. Bought an oil cooler, sent the truck and the parts back out to the shop, they replaced the oil cooler, and put the headstuds in it, then threw the programmer in for free. all and all, I am really plesed with my truck now, the only thing I would like is a new intake, injectors, and a sct programmer.