Tommy at Go Tunning called me one day and offered me this exhaust. We went to Greddy to test fit it and dyno test it. This exhaust was not yet released and I had the 1st one. I got a great deal on it and ended up selling it for a profit 10 years later. I would have kept it but it got too loud over time as it wore out. I loved the look of it but went back to stock exhaust.