Twisted Steel Loop Delete Down-Pipe 2-1/2" Stainless Steel Exhaust System The aFe Twisted Steel XP Jeep Loop Delete Down Pipe is designed to eliminate the stock loop section after the catalytic converter. This down pipe accepts either the OE "Y-Pipe" or the aFe MACH Force XP "Y-Pipe". Specifically designed and engineered to accept long arm travel lift kits that interfere with the OE loop. This down pipe features 2.5 IN stainless steel mandrel-bent tubing and all necessary hardware. Cutting is required. Eliminates stock loop section after the catalytic converter. Engineered to accept long-arm travel lift kits that interfere with the OE loop. Works with stock "y-pipe" or with aFe Power "y-pipes" Fitment Note: This exhaust fits the both 2-door and 4-door models Emissions Disclaimer: This product does not require a CARB EO# All aFe exhaust systems are engineered and manufactured in our Corona, California manufacturing facility.