800-227-2242
My Garage Add a vehicle

Recent vehicles

Vehicles you shop for show up here. Pick one in the Shop By Vehicle bar below.

Cart
Reset

Flowmaster American Thunder Cat-Back Exhaust System

Mfg Part #
818206
NP#
FLO818206
Brand
Flowmaster
Fitment Note
Fits trucks with factory bumper cut-outs only

Fits 2024 to 2026 Chevrolet Silverado 1500, and 1 more make. See every vehicle

  • 3.5 and 2.5-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
  • Kit includes complete hardware and factory styled hangers in the stock locations for an easy installation
  • An tuned 50 Series HD style chambered muffler delivers a deep, aggressive to moderate performance tone and improves exhaust flow
  • Max increases of up to 15 hp and 13 lb-ft over the stock exhaust at the wheels
  • Tuned performance muffler with built in resonance chamber eliminates interior drone
  • Lifetime Limited Warranty
$2,321.99 CAD
Free shipping in Canada
Availability: Product is backordered at the supplier right now, availability is unknown at this time. Contact us
Contact [email protected] to check before you order.

Does this fit your vehicle?

Description

Flowmaster's® American Thunder® Cat-back exhaust system for the 2024 to 2026 GM 1500 trucks with the 6.2-liter engine is a great way to customize your Silverado or Sierra to your personality. This performance exhaust system fits both 2/4 Wheel drive models and is manufactured from 409 stainless steel for years of trouble-free service and performance. Features include a 3.50-inch inlet pipe leading into a specialty tuned 50 Series HD style muffler for great sound and maximum performance. This cat-back system has dual 2.5-inch mandrel-bent tailpipes that exit in the bumper cut-out locations, with custom quad exit 4.0-inch black ceramic tips for a great performance look. Included in this cat-back system is active valve control with an integrated turndown. This allows you to control the factory valve from the dash with the different drive modes for full control of your sound level. Run the valve closed in the Normal drive mode, or open the valve in Sport or Off-Road mode for maximum sound. Max dyno gains of 15 hp and 13 lb-ft at the rear wheels deliver power you can feel. These systems use all the factory hanger locations and connections for an easy installation that you can do at home. Kit include installation instructions and all necessary hardware. Backed by Flowmaster's Lifetime Limited Warranty.

Warranty: Manufacturer's Limited Lifetime Warranty

Fits these vehicles

YearMakeModelSubmodelEngine
2024 - 2026ChevroletSilverado 1500High Country, LT Trail Boss, LTZ, RST6.2L 376 V8
2024 - 2026GMCSierra 1500AT4, Denali, Denali Ultimate, SLT6.2L 376 V8

Sign up for sales, arrivals, vehicle specific content and more.