2018-2024
2007-2018
1997-2006
1987-1995
1976-1986
Installation Time
(approx) 1 Hour
Difficulty Level:
Simple installation for anyone.
FREE 1 to 3-Day Delivery on Orders $119+ Details
Talk to a Wrangler Sales Tech
1-877-870-8556
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Get $80 Off
Redeem Now >
Find Cat-Back Exhaust for your Wrangler
Flowmaster American Thunder Cat-Back Exhaust System with Black Tips (18-24 3.6L Jeep Wrangler JL)Find parts that fit my vehicle
Item J126475-JL
$0.00
72 Reviews
2 Answers
Our Price
$937.95 kit
Will this fit your Vehicle?
Saved - View your saved items
We're sorry. We couldn't save this product at this time.
or use
Add Local Installation
$299.00
Frequently Bought Together
Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- Produces an Aggressive Exhaust Sound
- Enhances Exhaust Flow for Improved Performance
- Chambered Muffler Design
- 409S Stainless Steel, 2.50-Inch Mandrel-Bent Tubing
- Black Painted Muffler Finish
- Dual Out Rear (DOR)
- Includes Black Ceramic-Coated 4-Inch 304 Stainless Steel Exhaust Tips
- Easy, Bolt-On Installation
- Fits 2018-2024 3.6L Jeep Wrangler JL Models
| Brand | Flowmaster |
| Exhaust System Type | Cat-Back System |
| Exhaust Tip Finish | Black, Black Chrome |
| Exhaust Tubing Diameter | 2.50 Inch |
| Exhaust Material | Stainless Steel |
| Exhaust Loudness | Moderate |
Description
Supremely Aggressive Sound. The Flowmaster American Thunder Axle-Back Exhaust gives you and your Jeep significantly noticeable confidence with its thundering exhaust note and equally powerful driving performance. Additionally, the resonant tuning chambers innovatively produce moderate interior sound with an overall improved quality and level of control.
Superior Performance. This American Thunder Cat-Back Exhaust features a chambered muffler design with superior capabilities in scavenging and refocusing of the exhaust gases. Its Power Chamber and Delta Flow technologies expertly regulate precise phase shifts to maximize power gains. The resulting increase in horsepower and torque provide the Jeep with significantly improved overall vehicle dynamics, both on and off the road.
Built to Last. Flowmaster equipped its American Thunder exhaust system with long-lasting durability. It is constructed from premium, 409 stainless steel with mandrel-bent tubing, fortified with a black painted finish. The fierce exterior is further reinforced with a pair of exhaust tips – suitably made from 304 stainless steel and coated with black ceramic finish. This entire exhaust system is designed to handle harsh driving conditions, including the constant attacks from the corrosive exhaust gases and thermal stress from catalytic activities.
Direct Installation. This American Thunder Cat-Back System is designed for a bolt-on installation. It is seamlessly compatible with the JL’s factory hangers and can be installed in around 1 hour with light-to-moderate mechanical skills.
Application. This Flowmaster American Thunder Cat-Back Exhaust with Black Tips is designed to fit 2018-2024 3.6L Jeep Wrangler JL models.
Fitment:
- 2018 Jeep Wrangler
- 2019 Jeep Wrangler
- 2020 Jeep Wrangler
- 2021 Jeep Wrangler
- 2022 Jeep Wrangler
- 2023 Jeep Wrangler
- 2024 Jeep Wrangler
Flowmaster 817819
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Resonator
- (1) Front Pipe
- (1) Over-Axle Pipe
- (1) Muffler
- (3) 2-1/2-Inch Stainless Band Clamps
- (3) 7/16-Inch Hanger Keepers
4.4
Customer Reviews (72)
Questions & Answers (2)
Will It Fit My Wrangler
- JL Rubicon 2 Door - 18, 19, 20, 21, 22, 23, 24
- JL Rubicon 4 Door - 18, 19, 20, 21, 22, 23, 24
- JL Wrangler 2 Door - 18, 19, 20, 21, 22, 23, 24
- JL Wrangler 4 Door - 18, 19, 20, 21, 22, 23, 24
Sponsored Ad
Word On The Trail
The site was very easy to navigate. Great touch that all the pics looked like my jeep make and color. Was helpful in visualizing what it would like.
Meet Our Team
James C, 2006 Jeep Wrangler TJ
Customer Service
I’ve always loved Jeeps from a young age, after moving to Puerto Rico at the age 9 my uncle had a Cherry Red 73 CJ5 which I fell in love with. He would use that Jeep to ride up the mountains on his farm, I knew after seeing that Jeep I would have one. The fact that a Jeep can be so versatile in ever...
I’ve always loved Jeeps from a young age, after moving to Puerto Rico at the age 9 my uncle had a Cherry Red 73 CJ5 which I fell in love with. He would use that Jeep to ride up the mountains on his farm, I knew after seeing that Jeep I would have one. The fact that a Jeep can be so versatile in ever...
Sponsored Ad
