Not quite what you're looking for, but my son ran their O/R H pipe on his 99 GT. It took some work on my end as he really wanted the X pipe, but he had Flowmasters on the car. The fit was about what we expected it to be. I think at the time the mid pipes were $150. But it didn't leak and sounded really good with the 1 chambers. Don't ask, they came on the car. It definitely sounded faster and meaner than it really was.Anyone ever ran them on their cobra ? I’m particular anyone run them with borla stingers ?