Buy Flowmaster 17171 Cat-back System - Dual Rear Exit - American Thunder - Moderate Sound

Flowmaster 17171 Cat-back System - Dual Rear Exit - American Thunder - Moderate SoundBuy Flowmaster 17171 Cat-back System - Dual Rear Exit - American Thunder - Moderate Sound

Flowmaster 17171 Cat-back System - Dual Rear Exit - American Thunder - Moderate Sound Product Description:



  • Mandrel bent 16 gauge aluminized tubing
  • Moderate exterior exhaust tone
  • Includes hangers and hardware for easy installation
  • Connects after factory catalytic converter
  • Dyno tuned for maximum performance

Product Description

For the person who wants the look of a traditional dual exhaust system with all the benefits that a Flowmaster cat-back exhaust system provides. D.O.R. (Dual Out Rear) systems are the perfect choice. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.

Customer Reviews

Most helpful customer reviews

1 of 1 people found the following review helpful.
4Great price for what you get!
By J. Weller III
This is a great product, by a great company, at a great price. I was able to install it myself without any problems. The only thing that I wish is that there was a way to listen to it over the internet to see how loud it is. For the price I paid, I was happy with the sound. I just wish it was a little louder.

0 of 0 people found the following review helpful.
5Sounds great
By Shaun
I thought I got the wrong one at first for my extended cab, but the muffler sits about two feet further back then original. Put the pipes in, attach the muffler to the pipes, and that's where it sits. I needed to buy two feet of inlet pipe to go between muffler and Cat, Once passed the confusion, the install was pretty simple and the instructions were helpful. The description and locations of mounting holes were dead on for my truck. Over all, less than a day to rip out the old and install the new CAT and pipes. They sounds really, really good. Very happy.

0 of 0 people found the following review helpful.
5Excellent!
By quonsethut62
System was easy to install. It took me longer to remove the old exhaust mess than to physically set the new system in place. One evening spent doing that, the next spent clamping everything in place, making sure the tail pipes were even (I'm picky) and tack-welding all the joints as extra insurance. This system conveniently used the center factory exhaust mounts and provided the two rear mounts with the kit.The sound of the system is great; I was replacing a rusted-out Flowmaster setup and this new system sounds similar to the old one. The kit's instructions should include a warning...."Use safety glasses when lying on your back under your vehicle using a sawz-all to cut old, rusted-out exhaust pipes..." or maybe that should be self-explanatory...!I highly recommend the kit. Buying it on Amazon for $100 less than Flowmaster's website cost and $50 less than Summit Racing's cost didn't hurt either (neither did the free shipping!).

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Buy Flowmaster 17171 Cat-back System - Dual Rear Exit - American Thunder - Moderate Sound