It would fit as it's not a very big muffler, but it would look silly as others are saying. And the FX bumper doesn't hide the mufflers and it's high off the ground so the silliness would be there for all to see. It will also sound pretty bad since it's basically a resonator and doesn't really quiet anything down much. 4.5" tip is fine as that's close to what most aftermarket exhausts run anyways, but the rest of it is the issue. You'd have to merge your OEM exhaust into a single, then connect that to the muffler and have custom hangers built. At that point, you're deep into the cost of just buying an Invidia, they're only like $850 or so.