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  • Flowmaster 11-18 GM 1500 CC-EC 6.2L American Thunder Cat-Back Exhaust System - 817602
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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
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
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
Flowmaster 11-18 GM 1500 CC-EC 6.2L American Thunder Cat-Back Exhaust System - 817602
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Load image into Gallery viewer, Flowmaster 11-18 GM 1500 CC-EC 6.2L American Thunder Cat-Back Exhaust System - 817602
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Flowmaster 11-18 GM 1500 CC-EC 6.2L American Thunder Cat-Back Exhaust System - 817602

Exhaust, Mufflers & Tips Catback
Flowmaster
flo817602
In stock
Not CARB compliant. Not legal for sale or use in California on emissions-controlled vehicles.
$1,051.25 $1,318.95
The American Thunder® Cat-back exhaust system for 2011-2018 Chevrolet Silverado and GMC Sierra 1500 trucks with the 6.2L engine, is perfect for the person looking for an aggressive exterior sound level while maintaining a moderate interior tone. This bolt-on stainless steel system features a 3.50-inch mandrel-bent inlet pipe flowing into the 50 Series™ HD performance muffler with large 4.00-inch internals and a built-in tuned resonance chamber to minimize interior drone. The system has dual 2.50-inch mandrel-bent tailpipes which use the factory hanger locations and are finished off with large 3.50-inch polished stainless steel tips. This exhaust system gives you choices for tailpipe exit location either out each side behind the rear tires if you do a lot of towing, or straight-out under the rear bumper for a muscular look. The exhaust system is covered by our Lifetime Limited Warranty and includes all necessary parts and hardware for easy installation you can do at home. Note: Fits 2/4 WD model with Crew Cab/Short Bed (143.5" WB), Crew Cab/Standard Bed (153" WB) and Double Cab/Standard Bed (143.5" WB). Fits 2011-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 with 6.2L engine, 2/4 WD model with Crew Cab/Short Bed (143.5" WB), Crew Cab/Standard Bed...
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
$1,406.95 $1,121.21
Flowmaster 15-16 Charger R/T / 15-23 CHRY 300 5.7L American Thunder Cat-Back Exhaust System - 817658
Flowmaster 15-16 Charger R/T / 15-23 CHRY 300 5.7L American Thunder Cat-Back Exhaust System - 817658
$1,406.95 $1,121.21
Flowmaster 11-18 GM 1500 CC-EC 6.2L American Thunder Cat-Back Exhaust System - 817602
SKU: flo817602
Product Details

Everything You Need To Know

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

Product Info

The American Thunder® Cat-back exhaust system for 2011-2018 Chevrolet Silverado and GMC Sierra 1500 trucks with the 6.2L engine, is perfect for the person looking for an aggressive exterior sound level while maintaining a moderate interior tone. This bolt-on stainless steel system features a 3.50-inch mandrel-bent inlet pipe flowing into the 50 Series™ HD performance muffler with large 4.00-inch internals and a built-in tuned resonance chamber to minimize interior drone. The system has dual 2.50-inch mandrel-bent tailpipes which use the factory hanger locations and are finished off with large 3.50-inch polished stainless steel tips. This exhaust system gives you choices for tailpipe exit location either out each side behind the rear tires if you do a lot of towing, or straight-out under the rear bumper for a muscular look. The exhaust system is covered by our Lifetime Limited Warranty and includes all necessary parts and hardware for easy installation you can do at home. Note: Fits 2/4 WD model with Crew Cab/Short Bed (143.5" WB), Crew Cab/Standard Bed (153" WB) and Double Cab/Standard Bed (143.5" WB).

Fits 2011-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 with 6.2L engine, 2/4 WD model with Crew Cab/Short Bed (143.5" WB), Crew Cab/Standard Bed (153" WB) and Double Cab/Standard Bed (143.5" WB).

Features & Benefits

  • Dyno Tuned For Maximum Performance
  • Uses the Factory Hanger Locations
  • Your Choice of Two Tailpipe Exits
  • 50 Series HD Performance Muffler
  • Clears the Factory Spare Tire
  • Stainless Steel Construction
  • Lifetime Limited Warranty
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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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