Great sound and easy install
2015 Ecoboost 3.5 F150:
I did the install in my driveway with the rear tires up on a ramp. Cut the muffler off just before it turns up over the axle which let me get it out laying on the ground. Took the rear portion off and cut the rest off according to the instructions. Nice burble sound and not intrusive at all windows up or down. Really just sounds like it should have from the factory. Adjusted it a few time to get the tip lined up nicely.