I found this on another forum and wanted to know if anyone had seen it before. Mopar is asking $576.40 for it online plus shipping. Its at http://www.mopersupercenter.com its said to give 8-15 hp on the other forum (who knows if thats right). This is whats said on the site: Mopar Performance Cat-Back Exhaust Systems, including the muffler, feature T304 stainless steel construction (aircraft quality) with mandrel-bent tubing, stainless band (torca) clamps and polished tips.
These free-flow systems provide a horsepower and torque gain, improved fuel economy and a deeper tone.