klatt_89
Gotta Be Somebody
How effective would a h or x pipe be on the exhaust system of a 99 F-150 with a 4.6L V-8. I'm going to do duals since the mufflers pretty well shot on the truck. Just wanna make sure i do it right, although i love the sound of true duals, i don't want to do something that will lessen mileage and performance.