It is a bassani kit I assume for 99-04 IRS cars. I picked it up for a steal and made it work on mine. It does hit on some bumps, and I always jack the rear up by the rear end with stands under the axles anyway so no real worries there. It probably wouldn't work on a stock height car either. Could be duplicated with bullet mufflers as not to hit or use a muffler with inlet and outlet on the same side.