Yea, the 99-04 cobras have the irs. I say this as in factory form. Some irs guys swap in a straight axle while other guys (96-98 cobra, 03-04 mach, 96-04 gt's and v6's) swap in the irs. I've even seen a few fox bodies swap in a irs.
Originally Posted by the02stang
I just realized that i had a fat friend sitting in the passenger seat that night!