Recently replaced the existing cat back Flowmaster exhaust (dual system) with the Force 2 series product ( part #17403- single 3" pipe) on my 2005 Ford F-150. Cant say enough how easy the new system went on after cutting off the old exhaust from the y-pipe behind the cats. Complete instructions (although I didn't really need them) and all the correct parts. Nice mellow exhaust note as well. Very happy with the product!
Great sound on 5.0 F150
This is a quality made exhaust that has a nice deep tone at idle. It sounds awesome when you step on it, and it is quieter at cruising speeds. I installed with a k&n CAI. Between the two, I noticed a solid 1 mpg increase. I am not an aggressive driver so take that for what it's worth. Also, the install directions leave out that when removing the stock exhaust, you have to turn it a 1/4 turn counter-clockwise to remove. There is a pin that holds stock exhaust between resonator and muffler.