The new Flowmaster American Thunder cat-back exhaust system for the 2007-2018 Jeep Wrangler JK is perfect for the person looking for maximum performance and off-road ground clearance. This system replaces the factory transverse muffler and relocates the Super HP-2 muffler behind the factory catalytic converter, providing a moderate to aggressive sound level. The system features a mandrel-bent 2.50-inch stainless steel tailpipe with a 3.00-inch polished stainless steel tip tucked up high under the rear bumper for maximum clearance. Fits both 2 and 4 door models with either the 3.8L or 3.6L engines. Because the tailpipe is tucked up so high, an aftermarket metal bumper is recommended. The exhaust system is covered by our Lifetime Limited Warranty and includes all necessary parts and hardware for an easy installation you can do at home.. 2007-2018 Jeep Wrangler JK 2dr/4dr with 3.8L or 3.6L engine, high clearance cat-back exhaust system, 409 stainless steel - Aggressive to moderate sound. Flowmaster 07-18 Jeep Wrangler JK American Thunder Cat-Back Exhaust System. Fits 2007-2018 Jeep Wrangler JK 2dr/4dr with 3.8L or 3.6L engines.. Flowmaster American Thunder Cat-back Exhaust System. Provides Maximum Clearance for Off-Road Driving. 0718 JEEP WRANGLER JK AMT CB 409S. Super HP2 Laminar Flow Technology. Uses the Factory Hanger Locations. Stainless Steel Construction. Quick and Easy Installation. Lifetime Limited Warranty. SYS 07-18 JEEP WRANG. SYS 07-18 JE

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