[CumminsPower98]

I just installed my 4" Jardine exhaust system turbo to tail with a 5" stainless tip this past Friday. I went from the factory 3" straight pipe to a 4" straight pipe and wow, does it sound AWESOME!!!! I needed it to help drop my EGT's, which can get out of hand very quickly. I have not done much testing but I'm sure it has helped some. The system fit together very well just like everyone on here has said. I was able to do the whole job in two hours. I think it's probably the best system out there for the price. My oversize spare tire even fits in better then it did with the stock exhaust on there! I would highly recommend this system to anyone considering a 4" exhaust.