Fitment Information Jeep Wrangler JK (2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017) Specs & Features for 17303 (Aluminized Silver) Tubing Diameter: 2.50-in.Aluminized mandrel bent tubing. Tip Description: 3.50in. Polished T304 Stainless; Round Slash- Cut Tip; Clamp on. Tip Specification: Inlet 2.50in.; Outlet 3.50in.; L-8in. Muffler Description: Baffled & Chambered Design, No internal Packing, Minimal Interior Drone, Aggressive Sound Muffler Dimension: 4 x 9 x 18 in Oval Body; 2.50. in. Offset Inlet; 2.50 in Dual Outlet. Additional Description: Includes all hardware and factory style hangers for easy bolt on installation. Exit Position: Exit Is Straight Out The Back. Warranty: Lifetime Limited Warranty Specs & Features for 17303-B (Aluminized Black) Tubing Diameter: 2.50-in. Stainless mandrel bent tubing Tip Description: 4in. Black Ceramic Intercooled Round Slash- Cut Tip. Tip Specification: Inlet 2.50 in; Outlet 4.00 in; L- 8 in Muffler Description: Baffled & Chambered Design, No internal Packing, Minimal Interior Drone, Aggressive Sound Muffler Dimension: 4 x 9 x 18 in Oval Body; 2.50. in. Offset Inlet; 2.50 in Dual Outlet. Additional Description: Includes all hardware and factory style hangers for easy bolt on installation. Exit Position: Exit Is Straight Out The Back. Warranty: Lifetime Limited Warranty Because Jeep enthusiast need more power from idle to 3,000 RPM, Gibson Designed their Jeep Exhaust to enhance low and mid range performance for climbing and towing. This Split Rear Exhaust exits straight out the back, with Dual Large diameter Stainless Tip. Hassle free, bolt-on installation with professional results. Backed by a Lifetime Limited Warranty.