Search  for anything...

Flowmaster 17328 American Thunder Cat-back Exhaust System

  • Based on 31 reviews
Condition: New
Checking for product changes
$608.57 Why this price?
Memorial Day Sale · 5% off was $641.65

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

Eligible for Return, Refund or Replacement within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 3 left in stock, order soon!
Fulfilled by T Squared Industries

Arrives May 24 – May 25
Order within 1 hour and 24 minutes
Available payment plans shown during checkout

Features

  • Includes an Aluminum Heat Shield for Rapid Heat Dissipation
  • Includes a Large 4.00-inch Polished 304 Stainless Steel Tip
  • Includes Hangers and Hardware for an Easy Installation
  • Mandrel-bent 16-gauge Aluminized Steel Tubing
  • Dyno-tuned for Maximum Performance

Description

Flow master 17328 Cat-back System - Single Side Exit - American Thunder - Aggressive Sound

Manufacturer: ‎Flowmaster


Brand: ‎Flowmaster


Model: ‎17328


Item Weight: ‎44.6 pounds


Item model number: ‎17328


Is Discontinued By Manufacturer: ‎No


Exterior: ‎Painted


Manufacturer Part Number: ‎17328


OEM Part Number: ‎17328


Date First Available: November 23, 2005


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 24 – May 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great fit, great sound, poor shipping, little pricey. 1 hour install.
Style: Base Product
The media could not be loaded. Installed on a 2002 extended cab short bed GMC Sierra 2500HD 8.1L. The box was barely holding together when everything arrived, much to my relief, everything was there. Some of the black paint was scratched off, but hardly an issue for me. Directions were simple and clear, I cut the old system off with a sawzall. The new pieces went on like butter, everything lined up and, with just a little elbow grease, got everything where I wanted it. Had no issues with hangers lining up or interference to nearby parts. Install took almost and hour flat and I didn't jack the truck off the ground. ( It sits on 285's which leaves just enough room to wiggle around under there.) Did this in 21 degree weather and in no real hurry. Provides a great sound and isn't loud enough to annoy the neighborhood at idle. I haven't done a highway test yet, but will update the review if I have any issues with resonance. I feel the $400 price is a bit high for what you get in this package, since the cats on these trucks are so far back, you're paying the tailpipe, muffler, and just enough pipe to tie it into the existing system. $350 would have made me feel a lot better. ... show more
Reviewed in the United States on January 12, 2020 by Tyler

  • Easy to install.
Style: Base Product
Installed on my 2000 GMC 2500 6.0 liter. Had to modify a few things because the exhaust was replaced at one point it another. Has a deep tone, highly recommend.
Reviewed in the United States on August 26, 2023 by Kevin

  • Easy install. Quiet and mellow tone. Needs an extra pipe to fit 4 door long box
Style: Base Product
2002 GMC 2500HD 8.1 CCLB. Install takes about an hour. Lots quieter compared to the dynomax cat back I had. The only negative I have is the system doesn’t directly fit a 4 door long box truck.
Reviewed in the United States on July 14, 2022 by Courtland Bowles

  • The fit and quality of the system is great. Installation was fairly smooth
Style: Base Product
The fit and quality of the system is great. Installation was fairly smooth. Directions are based off of replacing the stock exhaust. If your exhaust has already been modified you have to disregard the measurements on the instructions and figure out where to cut the factory pipes on your own. I have an 8.1l and the sound is nice. It is a great deal louder than the stock exhaust, but not to an annoying level. ... show more
Reviewed in the United States on January 22, 2016 by Zack Wade

  • Overpriced
Style: Base Product
Easy installation and sounds good
Reviewed in the United States on September 6, 2022 by Chris Lucero

  • awsome system
Style: Base Product
Gave it a 5 star because it did more than expected. Improved sound of course but also improved tranny performance. Yes I would recommend this item
Reviewed in the United States on April 19, 2014 by Kevin S.

  • Fit perfect
Style: Base Product
Quick install and very easily installed. Took less than 30 minutes.
Reviewed in the United States on December 8, 2019 by david benson

  • So far, so good.
Style: Base Product
So far, so good. Quick and easy install, about an hour. Still tightening clamps, really need to replace the with a sturdier clamp, had the tailpipe come loose. Great sound, better performance and added 2 mpg per gallon. Time will tell how long it will last, some previous comments claimed the baffles would come loose or had issues with alignment. ... show more
Reviewed in the United States on June 26, 2017 by B-Rubble

Can't find a product?

Find it on Amazon first, then paste the link below.