aFe 48-46209 Twisted Steel Loop Delete Down-Pipe 2-1/2 Stainless Steel Exhaust SystemaFe 48 46209 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