I have an 05 mustang gt with full exhaust, sct custom tune, cold air intake and 20 inch rims. It is like a dream car, but I have always had a thing for the 6 speed and the some what factory build 4v of the 03-04 cobra's. Do you think it is a bad trade? Also I can't seem to find a decent deal on a 03-04 cobra. They all want way to much or they are beat with high miles. I would like any and all opinions.