The classic sound of a Flowmaster chambered exhaust, our American Thunder Series features mufflers tuned to deliver more power, torque, throttle response and mileage. Best of all, these exhaust systems take sedate vehicles and delivers a deep aggressive tone.
The exhaust sounds great. The install took less than one hour. However, the removal of your old exhaust sucks. Take my advice: take your keep to a muffler shop and have them remove it. It’s not worth the time and effort to remove yourself. Reuse the rubber hangers. A couple of YouTube videos make the install easy.
By Doug from St. Cloud, FL
Installed on 2014 JK Rubicon X
So I installed this on a 2014 JKRX about a month ago and I have been waiting to post a review. The sound and ground clearance is awesome! My mileage has dropped 2 - 4 MPG and I am not driving it with a heavy foot due to the better sound of this system over stock. The install took way too long as it seemed that I was the first person (according to Flowmaster tech support) which struggled with a two-door install. I ended up cutting 1.75" off of the first pipe connected to the stock y-pipe to make it fit. The 3/4" clearance recommended by flowmaster is very difficult to achieve over the rear sway bar and below the body at the rear axle
By AD from Denver, CO
Hardest part about putting this system on was getting the stock system off. Eventually had to chop it off with the sazall after trying for 2 hours to save it. Even with only 8k miles on a brand new truck it was still a major pain. System went on in about 30 minutes or so. We dry fit it all before tightening the clamps. Everything fit perfect, only thing that was weird was you had to cut down one section of pipe for your type of body style. Tips were perfectly level and came out in the exact same spot on each side. Sound is perfect for me. Nice and throaty down low and at idle with a raspy sound in the upper RPMs but is nice and quiet on the highway with just a little bit of drone if you are going over 65. This was installed on a '12 Ram Power Wagon and it fit with no issues.
By Stickman from Wayland, MO
This exhaust system is amazing on my 2003 5.3l chevy tahoe. It looks great, sounds great, and functions perfectly. For the price, you can't beat it. GREAT VALUE
For over 30 years, Flowmaster has been producing exhaust products to combat noise issues that first cropped up on race tracks in California. The question was how to reduce sound without compromising performance? Advanced engineering and ample testing set Flowmaster's product line apart from competitors and a few of their more noteworthy parts include chambered mufflers, laminar flow designs and high flow catalytic converters. We carry Jeep exhaust pipes, exhaust flanges and complete exhaust systems among other Flowmaster products. The company's patented technologies, innovative designs and focus on performance keep Flowmaster at the forefront of aftermarket exhaust manufacturers. Shop Flowmaster Exhaust Now