Yoshimura RS-2 Signature Series Slip-On - Aluminum Muffler 2388713All Signature series exhaust are tested, documented and marked with appropriate EPA noise emissions labels CARB EPA tail pipe emissions compliant All applications are marked with appropriate EPA noise emissions labels Certified by an independent laboratory for EPA noise compliance The RS 2 is a quieter system with a larger core and it offers the added bonus of outstanding performance in a value priced package. Diamond shaped sleeve Large core and