That would be pretty tough. Is there any reason why you aren't looking into an exhaust system that is designed to fit your Mustang? The bends and fitment of the 99-04 Cobra exhaust won't fit a 99-04 GT/V6.
Sorry about that! Let us know if we can be of any assistance. Our Mustang Experts are here Monday-Friday from 9AM-9PM EST and Saturdays from 9AM-5:30PM EST. If you want to hit them up, their number is 866.727.1266. I can also have one of them call you directly.
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