2008-2018 Wrangler Flowmaster Thunder


2008-2018 Wrangler Flowmaster Thunder Exhaust System Kit; American Thunder (R) Cat Back System; 409S Stainless Steel; With Muffler; 2-1/2 Inch Pipe Diameter; Single Exhaust With Single Exit; Passenger Side Rear Exit; 3 Inch Stainless Steel Tip
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Classic Muscle Exhaust System Aggressive Tone

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2008-2018 Wrangler Flowmaster Thunder

The 2008-2018 Wrangler Flowmaster Thunder ®

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.

PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov

2008-2018 Wrangler Flowmaster Thunder


  • 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
Brand Flowmaster
Emission Code 5
Exhaust Series American Thunder
Exit Position Single Rear Exit
Heat Shield No
Inlet Diameter (in) 2.5
Material 409 Stainless Steel
Muffler Part Number Kit Only
Muffler Quantity 1
Muffler Series Super HP-2
Outlet Diameter (in) 2.5
Product Type Exhaust System
Single Dual Dual
Sound Level Aggressive / Moderate
System Type Cat-back
Tip Diameter (in) 3
Tip Length (in) 3.75
Tip Quantity 1
Tubing Diameter (in) 2.5
UPC 700042030385
California Proposition 65 Chemical Name Chromium (hexavalent compounds)
  Nickel (Metallic)
California Proposition 65 Required Yes
Part Number 817674


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