aFe Power Scorpion 45-16201 Jeep Wrangler JK Performance Package Package Includes aFe Power Intake System 54-12092-1 plus Exhaust System 49-46212 plus Y-Pipe 48-46208 The intake utilizes a highly engineered one-piece heat-shield, a heat-insulating, roto-molded intake tube and a 3-angle adaptor. The cat-back exhaust system is constructed of 2.5" mandrel-bent 409 stainless steel and features a free-flowing muffler and OE style bayonet hangers The y-pipe is designed to accommodate aftermarket lift kits, and features 2 x 2" into 1 x 2 1/2" stainless steel mandrel-bent tubing Fits only the Jeep Wrangler Unlimited (4 Door) with automatic transmission