SHELBY GT 350 Member
Joined: Jan 2011
Location: Central Massachusetts
I don't know, but I bet it would be crazy loud and raspy . . . you are talking about the stock Roush mufflers, right?
Before you go forward with off-road X-pipe, be aware that "off road" means "illegal for use on public roads in the United States" . . . you can get away with it in some locations, but in some places it will create a huge hassle with very little performance gain.
| 2010 GT coupe | Daily Driver with some Steeda and GT500 take-off stuff for the occasional track day