http://www.svtperformance.com/forums...xhaust-Sysytem!
Looks like with a full exhaust, including a catted X, they put down 410 RWHP before tuning. I'm seeing lots of mod potential with this new 5.0. More than the 11-14's. Intake/Tune/Full exhaust without cats = maybe 450 RWHP?