Flowmaster 07-18 Jeep Wrangler JK American Thunder Cat-Back Exhaust System

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 Fits 2007-2018 Jeep Wrangler JK 2dr/4dr with 3.8L or 3.6L engines.

• Provides Maximum Clearance for Off-Road Driving
• Super HP2 Laminar Flow Technology
• Uses the Factory Hanger Locations
• Stainless Steel Construction
• Quick and Easy Installation
• Lifetime Limited Warranty

Upgrade your 2007-2018 Jeep Wrangler JK with the Flowmaster 817674 American Thunder cat-back exhaust system, engineered for improved performance, a moderate-to-aggressive exhaust tone, and enhanced off-road ground clearance. This high-clearance system fits two-door and four-door Wrangler JK models equipped with either the 3.8L or 3.6L engine. It replaces the factory transverse muffler and relocates the Super HP-2 muffler behind the factory catalytic converter for a practical layout that helps protect the exhaust during off-road use.
The Flowmaster American Thunder system features Super HP-2 Laminar Flow technology for a deep, powerful sound and efficient exhaust flow. Its mandrel-bent 2.50-inch 409 stainless steel tailpipe is finished with a polished 3.00-inch stainless steel tip that tucks high beneath the rear bumper. This design maximizes clearance while maintaining a clean, performance-oriented appearance. Because of the elevated tailpipe position, installation with an aftermarket metal bumper is recommended.
Designed for straightforward installation, the Flowmaster 817674 uses the factory hanger locations and includes the necessary components and hardware for a convenient at-home installation. Durable stainless steel construction provides long-term corrosion resistance and dependable performance in demanding driving conditions. The system is backed by Flowmaster’s Lifetime Limited Warranty. This product may require acknowledgment of applicable emissions regulations before installation; verify local requirements and vehicle compatibility before ordering.

Features:

• Fitment: 2007-2018 Jeep Wrangler JK two-door and four-door models with 3.8L or 3.6L engines

• High-clearance design: Provides maximum exhaust clearance for off-road driving

• Muffler technology: Super HP-2 Laminar Flow muffler delivers a moderate-to-aggressive sound

• Construction: Mandrel-bent 409 stainless steel exhaust components for durability

• Tailpipe: High-tucked tailpipe design with a polished stainless steel tip

• Installation: Uses factory hanger locations and includes required installation hardware

• Warranty: Backed by Flowmaster’s Lifetime Limited Warranty

Fitment:
Jeep Wrangler 70th Anniversary 2011
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Jeep Wrangler Rubicon 2007
Jeep Wrangler Rubicon 2008
Jeep Wrangler Rubicon 2009
Jeep Wrangler Rubicon 2010
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Jeep Wrangler Sahara 2007
Jeep Wrangler Sahara 2008
Jeep Wrangler Sahara 2009
Jeep Wrangler Sahara 2010
Jeep Wrangler Sahara 2011
Jeep Wrangler Sahara 2012
Jeep Wrangler Sahara 2013
Jeep Wrangler Sahara 2014
Jeep Wrangler Sahara 2015
Jeep Wrangler Sahara 2016
Jeep Wrangler Sahara 2017
Jeep Wrangler Sport 2010
Jeep Wrangler Sport 2011
Jeep Wrangler Sport 2012
Jeep Wrangler Sport 2013
Jeep Wrangler Sport 2014
Jeep Wrangler Sport 2015
Jeep Wrangler Sport 2016
Jeep Wrangler Sport 2017
Jeep Wrangler Sport S 2016
Jeep Wrangler Unlimited 70th Anniversary 2011
Jeep Wrangler Unlimited 75th Anniversary 2016
Jeep Wrangler Unlimited Rubicon 2007
Jeep Wrangler Unlimited Rubicon 2008
Jeep Wrangler Unlimited Rubicon 2009
Jeep Wrangler Unlimited Rubicon 2010
Jeep Wrangler Unlimited Rubicon 2011
Jeep Wrangler Unlimited Rubicon 2012
Jeep Wrangler Unlimited Rubicon 2013
Jeep Wrangler Unlimited Rubicon 2014
Jeep Wrangler Unlimited Rubicon 2015
Jeep Wrangler Unlimited Rubicon 2016
Jeep Wrangler Unlimited Rubicon 2017
Jeep Wrangler Unlimited Sahara 2007
Jeep Wrangler Unlimited Sahara 2008
Jeep Wrangler Unlimited Sahara 2009
Jeep Wrangler Unlimited Sahara 2010
Jeep Wrangler Unlimited Sahara 2011
Jeep Wrangler Unlimited Sahara 2012
Jeep Wrangler Unlimited Sahara 2013
Jeep Wrangler Unlimited Sahara 2014
Jeep Wrangler Unlimited Sahara 2015
Jeep Wrangler Unlimited Sahara 2016
Jeep Wrangler Unlimited Sahara 2017
Jeep Wrangler Unlimited Sport 2010
Jeep Wrangler Unlimited Sport 2011
Jeep Wrangler Unlimited Sport 2012
Jeep Wrangler Unlimited Sport 2013
Jeep Wrangler Unlimited Sport 2014
Jeep Wrangler Unlimited Sport 2015
Jeep Wrangler Unlimited Sport 2016
Jeep Wrangler Unlimited Sport 2017
Jeep Wrangler Unlimited Sport S 2016
Jeep Wrangler Unlimited X 2007
Jeep Wrangler Unlimited X 2008
Jeep Wrangler Unlimited X 2009
Jeep Wrangler Unlimited X 2010
Jeep Wrangler X 2007
Jeep Wrangler X 2008
Jeep Wrangler X 2009
Jeep Wrangler X 2010
Jeep Wrangler JK Rubicon 2018
Jeep Wrangler JK Sahara 2018
Jeep Wrangler JK Sport 2018
Jeep Wrangler JK Sport S 2018
Jeep Wrangler JK Unlimited Rubicon 2018
Jeep Wrangler JK Unlimited Sahara 2018
Jeep Wrangler JK Unlimited Sport 2018
Jeep Wrangler JK Unlimited Sport S 2018