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Flowmaster 817709 American Thunder Cat-Back Exhaust Kit 3 Inch 409 Stainless Steel Dual 4 Inch Polished Stainless Tips Compatible with 2014-2024 Ram 2500 6.4L 149.4 160.5 169.4 Inch Wheelbases

4.7 (9) Write Review
Free shipping on orders over $29.99

$1,169.95

$ 99 .00 $99.00

In Stock

1.Style:Base Product


About this item

  • Stainless Steel Construction
  • Dyno Tuned For Maximum Performance
  • Patented Delta Flow technology
  • Lifetime Limited Warranty


Flow master 817709 American Thunder Cat Back Exhaust System


Joseph Mears
Reviewed in the United States on August 17, 2023
The box was beat up when it arrived but i was more irritated at the fact that i did not receive none of the clamps and one of the pieces of pipe. Otherwise, i like the sound of this set up. Not too loud, not to quiet, and doesn't drone real bad inside the cab
Lobo
Reviewed in the United States on March 25, 2023
It was easy to install. To be honest it was physically harder to take the old one out. To DIY you can't get a better value.
Nathan W.
Reviewed in the United States on February 1, 2020
Very easy to install with a car lift. Looks great and very clean even with no welding. Very throaty sound and nice to have 2 options to exit out the back or behind the rear tires. I initially had it under the rear bumper and now have moved it to come out behind the rear tires.I wish they had an option with black tips though. They sell the black tips but not with any American Thunder kits. They are a $200 option for a set.
Customer
Reviewed in the United States on September 6, 2019
Flowmaster is the best and never fail to impress. Install was about an hour and a half but was pretty smooth.
eric michaud
Reviewed in Canada on June 12, 2019
Parfait
bwingate
Reviewed in the United States on June 24, 2018
Easy fitment on my 2017 Ram 2500 Laramie 4X4 6.4L. Sounds really good too.
Alissa F
Reviewed in the United States on May 24, 2018
Nice throaty sound! everything fit like original. It was much harder getting the original off than putting the new stuff on!
Profyi
Reviewed in the United States on December 7, 2018
The kit had everything good Quality. Directions a little sketchy but overall fit and sounds great
James
Reviewed in the United States on November 5, 2018
Loudness perfect for me! Low cabin echo at cruising speeds but Open her up and sounds great! Even my ford & gm buddies tell me it sounds AWESOME!One complaint I do have was there are 2 options available to run out the tips of the exhaust and I chose out back . The pipes that angle up and out are not exactly the same bend so I tried to make adjustments but 1 tip is slightly pitched down and the other level/up a bit. Drives me nutts but I have OCD.