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  • Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System - 817853
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Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System - 817853
Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System - 817853
Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System - 817853
Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System - 817853
Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System - 817853
Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System - 817853
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Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System - 817853

Exhaust, Mufflers & Tips Catback
Flowmaster
flo817853
Only 5 left
Not CARB compliant. Not legal for sale or use in California on emissions-controlled vehicles.
$1,166.06 $1,462.95
This Flowmaster® American Thunder® Cat-back exhaust system is perfect for the person looking for deep, powerful sound outside the vehicle with a little growl inside the cab. This emissions-legal system is for 2WD & 4WD 2019-2026 GM 1500 trucks (new body style) with the 5.3L engine and factory single exhaust. System features include full stainless steel construction, a single in/dual outlet Super 40® Series muffler and mandrel-bent dual 2.50-inch stainless steel tailpipes for maximum performance and a deep sound. Maximum dyno gains of 21 hp and 23 lb.ft. at the rear wheels. This bolt-on system utilizes the factory hanger locations and includes your choice of tailpipe exits, either dual out the rear exiting under the bumper, or dual out the side behind the rear wheels to help prevent blowing exhaust on your boat or trailer when towing. The system is finished off with a pair of large 3.50-inch double wall polished 304 stainless steel tips. Designed for a perfect fit, the system includes installation instructions and all the necessary hardware for an easy at home installation. Note: Fits 2/4 wheel drive Crew cab and double cab models. Does not fit crew cab 2WD with 2-piece driveshaft, 2019 LD/classic body or...
Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System - Quad Tips - 817895
Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System - Quad Tips - 817895
$1,349.95 $1,076.36
Flowmaster 18-23 Mustang 5.0L Outlaw Axle-Back Exhaust System - (w/Valves) - 817825
Flowmaster 18-23 Mustang 5.0L Outlaw Axle-Back Exhaust System - (w/Valves) - 817825
$1,799.95 $1,545.56
Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System - 817853
SKU: flo817853
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 perfect for the person looking for deep, powerful sound outside the vehicle with a little growl inside the cab. This emissions-legal system is for 2WD & 4WD 2019-2026 GM 1500 trucks (new body style) with the 5.3L engine and factory single exhaust. System features include full stainless steel construction, a single in/dual outlet Super 40® Series muffler and mandrel-bent dual 2.50-inch stainless steel tailpipes for maximum performance and a deep sound. Maximum dyno gains of 21 hp and 23 lb.ft. at the rear wheels. This bolt-on system utilizes the factory hanger locations and includes your choice of tailpipe exits, either dual out the rear exiting under the bumper, or dual out the side behind the rear wheels to help prevent blowing exhaust on your boat or trailer when towing. The system is finished off with a pair of large 3.50-inch double wall polished 304 stainless steel tips. Designed for a perfect fit, the system includes installation instructions and all the necessary hardware for an easy at home installation. Note: Fits 2/4 wheel drive Crew cab and double cab models.

Does not fit crew cab 2WD with 2-piece driveshaft, 2019 LD/classic body or trucks with factory dual exhaust tailpipes. Does not fit models wit the Multimatic suspension option.

Features & Benefits

  • Max Dyno Gains of 21 hp and 23 lb.ft. of Torque
  • Large 3.50 inch Polished 304 Stainless Tips
  • Full Stainless Steel Construction
  • Uses the Factory Hanger Locations
  • Deep, Powerful Performance Tone
  • Clears Factory Spare Tire
  • Lifetime Limited Warranty
  • Mandrel-bent Tubing
  • Easy Installation
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In Stock Items:
In stock items typically ship within 1-3 business days. Most items arrive within 2 business days, but there are situations where it may take up to 5 business days.

Special Order Items:
Special order and out of stock items are product-specific and lead times can vary. Please e-mail us if you are looking for an ETA / Lead Time on a specific product. Special order orders are subject to cancellation if the vendor cannot provide any ETA.

Returns Policy

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.

If you are shipping an item over $100, you should consider using a trackable shipping service and/or purchasing Shipping Insurance.

To initiate a price match, please e-mail sales@allianceracing.com with the product information (SKU, URL, & Part Name) and a link to the competitors product page for us to validate the price match eligibility.

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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