Flowmaster American Thunder Cat-back Exhaust System 2007-2018 Jeep Wrangler JK 3.6L/3.8L Flow FX Extreme Stainless Steel 3.0" Cat-Back Exhaust System - 717968

The Flowmaster Flow FX Extreme Stainless Steel Cat-Back Exhaust System is designed for 2007–2018 Jeep Wrangler JK models equipped with the 3.6L or 3.8L engine. This system is ideal for Jeep owners looking for an aggressive, deep exhaust tone combined with improved performance and off-road capability.

Built using 3.00-inch mandrel-bent 409 stainless steel tubing, this cat-back system maximizes exhaust flow for increased power and durability. The Flow FX series absorption-style performance muffler delivers a deep, powerful exhaust note while maintaining efficient exhaust flow.

This system features a dump-style exit located immediately after the muffler, eliminating the over-axle tailpipe. Removing the tailpipe improves ground clearance and departure angle, making it an excellent choice for extreme off-road driving. Designed for easy installation, the system uses factory hanger locations, includes all necessary hardware, and is backed by Flowmaster’s Lifetime Limited Warranty.

Key Features

• Aggressive exhaust sound profile

• Flow FX series absorption-style performance muffler

• 3.00-inch mandrel-bent stainless steel tubing

• Dump-style exit for increased ground clearance

• Improved departure angle for off-road use

• Durable 409 stainless steel construction

• Uses factory hanger locations

• Includes all necessary installation hardware

• Designed for off-road and performance use

• Lifetime Limited Warranty

Fitment Information

• Fits 2007–2018 Jeep Wrangler JK models

• Engine compatibility: 3.6L V6 and 3.8L V6

• Body style: Wrangler JK

• Cat-back exhaust system configuration

• Exit style: Single dump exit

• Valve provision: None

Exhaust System Specifications

• Brand: Flowmaster

• Exhaust series: Flow FX

• Product type: Exhaust system

• Part type: Exhaust system

• Category: Exhaust

• Subcategory: Exhaust and tail pipes

• Sound level: Aggressive

• Grade type: Performance

• Finish: Natural

• Pipe color: Silver

• Pipe material: 409 stainless steel

• Main piping diameter: 3.00 IN

• Inlet type: Clamp-On

• Clamping type: Flat band

• Clamps included: Yes

• Gasket or seal included: No

• Hangers included: Yes

• Mount type: Uses factory hangers

• Mounting bracket included: No

• Valve included: No

• Valve type: Not applicable

Muffler Specifications

• Muffler included: Yes

• Muffler quantity: 1

• Muffler series: Flow FX

• Muffler type: Absorption

• Muffler part number: Kit only

• Muffler body material: 409 stainless steel

• Muffler body shape: Round

• Muffler body diameter: 6.00 IN

• Muffler body length: 14.00 IN

• Muffler overall length: 25.20 IN

• Muffler finish: Natural

• Muffler color: Silver

• Muffler inlet connection: Slip-Fit

• Muffler inlet inside diameter: 3.00 IN

• Muffler inlet outside diameter: 3.13 IN

• Muffler inlet location: Center

• Muffler outlet diameter: 3.00 IN

• Muffler outlet location: Center

• Muffler outlet quantity: 1

• Muffler flanged inlet: No

• Muffler flanged outlet: No

Exhaust Tip Specifications

• Exhaust tip quantity: 1

• Exhaust tip diameter: 3.00 IN

• Exhaust tip material: 409 stainless steel

• Exhaust tip finish: Natural

• Exhaust tip color: Silver

• Exhaust tip shape: Round

• Exhaust tip cut: Straight

• Exhaust tip edge: Slash cut

• Exhaust tip connection: Welded

• Exhaust tip wall: Single wall

• Exhaust tip resonated: No

• Exhaust tip intercooled: No

Tailpipe Specifications

• Tailpipe quantity: 1

• Tailpipe outlet outside diameter: 3.00 IN

• Tailpipe tapered outlet: No

Regulatory & Product Information

• CARB compliant: Yes

• California Proposition 65: Yes

• California Proposition 65 chemical name: Chromium (hexavalent compounds)