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  • Flowmaster 14-19 GM1500 4.3L/5.3L CC&DC American Thunder Cat-Back Exhaust System - 817669
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Flowmaster 14-19 GM1500 4.3L/5.3L CC&DC American Thunder Cat-Back Exhaust System - 817669
Flowmaster 14-19 GM1500 4.3L/5.3L CC&DC American Thunder Cat-Back Exhaust System - 817669
Flowmaster 14-19 GM1500 4.3L/5.3L CC&DC American Thunder Cat-Back Exhaust System - 817669
Flowmaster 14-19 GM1500 4.3L/5.3L CC&DC American Thunder Cat-Back Exhaust System - 817669
Flowmaster 14-19 GM1500 4.3L/5.3L CC&DC American Thunder Cat-Back Exhaust System - 817669
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Load image into Gallery viewer, Flowmaster 14-19 GM1500 4.3L/5.3L CC&DC American Thunder Cat-Back Exhaust System - 817669
Load image into Gallery viewer, Flowmaster 14-19 GM1500 4.3L/5.3L CC&DC American Thunder Cat-Back Exhaust System - 817669
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Flowmaster 14-19 GM1500 4.3L/5.3L CC&DC American Thunder Cat-Back Exhaust System - 817669

Exhaust, Mufflers & Tips Catback
Flowmaster
flo817669
Special order
September 23, 2026
Not CARB compliant. Not legal for sale or use in California on emissions-controlled vehicles.
$1,121.21 $1,406.95
This Flowmaster American Thunder cat-back exhaust system is custom designed for 2014-2019* (*Classic body) GM Silverado/Sierra 1500 trucks and is perfect for the person looking for a moderate sound level inside the cab area, with an aggressive exterior sound with all of the performance benefits that you expect from Flowmaster. This bolt-on emissions-legal system is for the Crew Cab and Double Cab models with 4.3L or 5.3L engines and comes with your choice of tailpipe exits, either dual out the rear under the bumper, or dual out the sides behind the rear tires. System features include stainless steel mandrel bent tubing flowing into a Super 40 series muffler and exiting with dual 2.50-inch stainless steel mandrel bent tailpipes. The system uses the factory hanger locations and is finished off with a pair of large 3.50-inch polished stainless steel tips and is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation. Does Not Fit Crew Cab 2WD with 2 Pc Driveshaft or 2019 New body trucks. Features & Benefits Aggressive Exterior with Moderate Interior Tone Super 40 Series Performance Muffler Custom Fit for Easy Installation All Stainless Steel Construction...
Flowmaster 11-22 Grand Cherokee 3.6L Force II Cat-Back SS Exhaust System - 817628
Flowmaster 11-22 Grand Cherokee 3.6L Force II Cat-Back SS Exhaust System - 817628
$1,257.95 $1,079.95
Flowmaster 11-18 GM 1500 CC-EC 6.2L American Thunder Cat-Back Exhaust System - 817602
Flowmaster 11-18 GM 1500 CC-EC 6.2L American Thunder Cat-Back Exhaust System - 817602
$1,318.95 $1,051.25
Flowmaster 14-19 GM1500 4.3L/5.3L CC&DC American Thunder Cat-Back Exhaust System - 817669
SKU: flo817669
Product Details

Everything You Need To Know

Review product information, shipping and returns, and price-match details before you order.

Product Info

This Flowmaster American Thunder cat-back exhaust system is custom designed for 2014-2019* (*Classic body) GM Silverado/Sierra 1500 trucks and is perfect for the person looking for a moderate sound level inside the cab area, with an aggressive exterior sound with all of the performance benefits that you expect from Flowmaster. This bolt-on emissions-legal system is for the Crew Cab and Double Cab models with 4.3L or 5.3L engines and comes with your choice of tailpipe exits, either dual out the rear under the bumper, or dual out the sides behind the rear tires. System features include stainless steel mandrel bent tubing flowing into a Super 40 series muffler and exiting with dual 2.50-inch stainless steel mandrel bent tailpipes. The system uses the factory hanger locations and is finished off with a pair of large 3.50-inch polished stainless steel tips and is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.

Does Not Fit Crew Cab 2WD with 2 Pc Driveshaft or 2019 New body trucks.

Features & Benefits

  • Aggressive Exterior with Moderate Interior Tone
  • Super 40 Series Performance Muffler
  • Custom Fit for Easy Installation
  • All Stainless Steel Construction
  • Lifetime Limited Warranty
  • Delta Flow Technology
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To start the return process, please e-mail sales@allianceracing.com

Include the following:
Subject "Return for Order#"
Order Number
Part Number
Reason

Returns are eligible for up to 14 days from delivery of items. Accepted refunds can take up to 7-10 business days to process. All refunds are subject to a 25% restocking fee, if opened. Customer may be responsible for return shipping. If 14 days have gone by since your item was delivered, unfortunately we can’t guarantee you a refund or exchange. We reserve the right to deny any return request, based on provided information.

Alliance Racing is not responsible for ensuring part fitment. It is the responsibility of the purchaser to ensure the parts being ordered are the correct fitment for the vehicle intended. Alliance Racing will not accept any returns for incorrect fitment after product is opened.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

Shipping

To return your product, mail your product to:
Alliance Racing LLC
8810 Twin Lakes Blvd
Tampa, FL 33614

In many cases, you will be responsible for shipping costs to return your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping will be deducted from your refund.

Depending on your location, the time it may take for your exchanged product to reach you may vary.

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Please note that there are cases when we cannot offer a price match, but we will do everything in our power to try to match it. Some manufacturers have Pricing Policies that we have to adhere to.

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