Pacesetter Performance Y Pipes improve exhaust flow, resulting in increased horsepower and torque, eliminating a bottleneck in the exhaust system. Made in the USA! This item is used in conjunction with the Pacesetter Long Tube Headers (part 70-2211). If you are not using Pacesetter Long Tube Headers, this part will not fit. The part number for this item is 82-1232 and it fits 2007-2011 Jeep Wrangler 3.8 models with Pacesetter 70-3240 LONG TUBE Headers.