Search  for anything...
Flowmaster

Flowmaster 817567 American Thunder 409S Stainless Steel Single Side Exit Cat-Back Exhaust System with Moderate/Aggressive Sound

    • Based on 11 reviews
Condition: New
Checking for product changes
$486.94 Why this price?
Save $364.35 was $851.29

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term with PayTomorrow
  • – 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, 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

This item is eligible for return 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 1 left in stock, order soon!
Fulfilled by Amazon
Arrives Friday, May 31
Order within 18 hours and 52 minutes
Available payment plans shown during checkout

Recently Viewed

Features

  • Stainless Steel Construction
  • Dyno proven performance gains
  • Patented Delta Flow technology
  • Lifetime Limited Warranty

Description

Flow master 817567 American Thunder 409S Stainless Steel Single Side Exit Cat- Back Exhaust System with Moderate/Aggressive Sound

Brand: Flowmaster


Manufacturer: ‎Flowmaster


Brand: ‎Flowmaster


Model: ‎817567


Item Weight: ‎46 pounds


Country of Origin: ‎USA


Item model number: ‎817567


Is Discontinued By Manufacturer: ‎No


Exterior: ‎Painted


Manufacturer Part Number: ‎817567


OEM Part Number: ‎817567


Date First Available: May 8, 2012


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 31

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
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Get a jak stand or 2nd pair of hands to install it
Style: Base Product
Easy to install but the flange doesnt line up. And the back hanger I had to bend it up to go in the spot. Otherwise exhaust sounds great and I hope it doesnt leak from the flange part.
Reviewed in the United States on October 26, 2019 by ALEX
    • Works and sounds excellent.
Style: Base Product
Worked great on my 157" wheelbase 2010 f150. Easy install by myself in half hour or less using all original mounting brackets on my truck. No welding, just cut down one extension pipe and everythingbolted securely into place. Looks and sounds excellent.
Reviewed in the United States on June 16, 2018 by Joseph Kurtz
    • Great sound, easy straight forward install, but disappointing quality
Style: Base Product
Review Image by Aaron Aaron
Review Image by Aaron Aaron
Review Image by Aaron Aaron
Review Image by Aaron Aaron
Review Image by Aaron Aaron
Easy to install, put this on my 2011 F150 FX4, superfan with 6.5' bed. Didn't need the extension piece, and only had to cut 2" off the inlet pipe. Great sound, nice deep growl when accelerating, screams when going up hill, but still pretty quiet when at cruising speeds with the windows down. Update (6 weeks after install): The baffle in the muffle broke loose the second day being on the truck and rattled like crazy. Flowmaster was very helpful and easy to deal with, started the warranty right away, took about four to five weeks to get a new muffler. Also, the pipe clamps they give you with the system are garbage. I've had to retighten them multiple times because the muffler will slip off the inlet pipe, even after using a breaker bar to tighten them down. If you want your system to stay together and not fall off your truck going down a highway, welding it together is a must, don't trust the straps to hold it together. Update (1 year 3 months): The second muffler they sent as a replacement to the original started rattling as well, but only at certain RPM, I decided to live with it. But the "stainless steel" is all completely rusted. Replacing shortly with a Stainless Works exhaust. Sounds great, but I wouldn't buy it again. ... show more
Reviewed in the United States on July 3, 2018 by Aaron Aaron
    • i dont know if happened during shipping or it was sent like this. installation was ok
Style: Base Product
the tip had a dent in it, i dont know if happened during shipping or it was sent like this. installation was ok. sounds good.
Reviewed in the United States on April 28, 2017 by jeast21851
    • Four Stars
Style: Base Product
Easy to install, fit good and sounds Awesome!
Reviewed in the United States on February 13, 2016 by Amazon Customer
    • Great exhaust sound for 09-12 F150s
Style: Base Product
Installed on 2010 super cab 5.4 F150, great lower end bass note with minimal cab drone up through the RPM range, measure twice and cut once if you are required to (check instructions) and installation is easy with a lift. If no lift is available a hacksaw or other tool may be required to get the old exhaust off. ... show more
Reviewed in the United States on February 11, 2013 by Robob
    • love it
Style: Base Product
i have a 2013 ford f-150 xl crewcab v6 3.5L ecoboost. its a v6 so i cant expect much from this exhaust..... its a flowmaster but it cant make my v6 sound like a v8. in any case i love how the truck sounds now... especially when turning it on. it cost me 180 bucks to install and the mechanic said it was a breeze to install it. i recommend it. ... show more
Reviewed in the United States on May 12, 2013 by Trust in Vic
    • Perfect rumble
Style: Base Product
Orgasim to your ears. Panty dropper start up and purrs like a lion on the road. I love this exhaust!
Reviewed in the United States on December 8, 2012 by Judge

Can't find a product?

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