From what I have seen on the Roush website all their exhausts do exit under the rear bumper. I prefer that set up because it doesn't get all the crap on it that the tires throw up. Hated having to wash all the mud and crap from between the pipes.
Part number that I got is: 421248
I do have the 5 star tune and the AFE intake.... I want to stop on it all the time, just to hear that engine roar.
Installation was easy, required tools:
13, 15 and 18mm Deep well sockets
Sawzall or hack saw ( something to cut pipe to correct length).
If you have an impact gun it will make loosening and tightening the bolts go faster, but I used my 1/2" drive ratchet and a lot of elbow grease.
I used a bottle jack to lift the body of the truck a few inches to give me more clearance to remove factory exhaust. I put the jack under the tow hitch and that lifted the body just fine for me.
---------- Post added at 10:28 PM ---------- Previous post was at 10:25 PM ----------
I am thinking about getting a cut out.....
When I had the factory exhaust off, I started the truck to hear what it would sound like, and it sounded even more badass, if I could drive around like that I would.
i highly recommend it! im dragging my feet a bit, but once i get a turndown on my DMH, ill probably be running it open all the time except on longer trips. and maybe during later night hours.... maybe.... hehehhe