Flowmaster · New
Flowmaster 07-18 Wrangler JK 3.6L/3.8L American Thunder Rock Axle-Back Exhaust System
MPN 817942 · Store SKU flo817942
Supplier stock checked 11/7/2026, 5:03:58 PM UTC. Adding a part does not reserve it.
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Product details
The Flowmaster American Thunder Axle-back exhaust system for the 2007-2018 Jeep Wrangler JK is perfect for the enthusiast looking for maximum performance and ground clearance. The 2.50-inch tailpipe features a mandrel bent 409 stainless steel design for performance and corrosion resistance. The tailpipe is finished off with a 3.00-inch polished 304 stainless steel tip and fits both 2 and 4 door models with the 3.6L or 3.8L engine. This system replaces the factory transverse muffler reducing weight, improves ground clearance, and provides a moderate sound level. Because this system tucks the tailpipe up high, an aftermarket metal bumper is generally recommended. The exhaust system is covered by our Lifetime Limited Warranty. Designed for a perfect fit, this system includes all necessary parts and hardware for easy and quick installation you can do at home in about 15 minutes. Fits 2007-2018 Jeep Wrangler JK with 3.6L/3.8L, No Muffler Flowmaster American Thunder Axle-Back Exhaust System
Manufacturer fitment & guides
Check 817942 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
