Flowmaster American Thunder Cat-Back Exhaust System - 818206

$1,599.95
Flowmaster American Thunder Cat-Back Exhaust System - 818206

Flowmaster American Thunder Cat-Back Exhaust System - 818206

$1,599.95
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.

Features:

  • 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

Product Specifications:

  • Product Details: Fits 2024-2026 GM 1500 6.2-Liter, American Thunder Cat-Back exhaust system, with active valve, 409 stainless steel
  • California Proposition 65: Yes
  • California Proposition 65 Chemical Name: Chromium (hexavalent compounds), Nickel (Metallic)
  • CARB (California) Compliant: Yes
  • Catalytic Converter Included: No
  • Catalytic Converter Quantity: 0
  • Choose Your Part: Exhaust System
  • Clamping Type: Flat Band
  • Clamps Included: Yes
  • Drive: 2WD, 4WD
  • Exhaust Series: American Thunder
  • Exhaust Tip Color: Black
  • Exhaust Tip Connection: Clamp-On
  • Exhaust Tip Cut: Angled
  • Exhaust Tip Diameter: 4.00 IN
  • Exhaust Tip Edge: Rolled Edge Angle Cut
  • Exhaust Tip Finish: Black Ceramic Coating
  • Exhaust Tip Intercooled: No
  • Exhaust Tip Length: 7.5 IN
  • Exhaust Tip Material: 304 Stainless Steel
  • Exhaust Tip Quantity: 2
  • Exhaust Tip Resonated: No
  • Exhaust Tip Shape: Round
  • Exhaust Tip Wall: Double Wall
  • Exit Style: Dual Out Rear
  • Finish: Natural
  • Gasket Or Seal Included: No
  • Grade Type: Performance
  • Hangers Included: Yes
  • Heat Shield Included: No
  • Inlet Diameter: 3.50 IN
  • Inlet Type: Clamp-On
  • Main Piping Diameter: 2.50 IN
  • Mount Type: Uses Factory Hangers
  • Mounting Bracket Included: Yes
  • Muffler Body Height: 5.00 IN
  • Muffler Body Length: 18.00 IN
  • Muffler Body Material: 409 Stainless Steel
  • Muffler Body Shape: Oval
  • Muffler Body Width: 10.00 IN
  • Muffler Color: Black
  • Muffler Finish: Black High-Temperature Paint Finish
  • Muffler Flanged Inlet: No
  • Muffler Flanged Outlet: No
  • Muffler Included: Yes
  • Muffler Inlet Connection: Slip-Fit
  • Muffler Inlet Inside Diameter: 3.5 IN
  • Muffler Inlet Location: Offset
  • Muffler Inlet Outside Diameter: 3.63 IN
  • Muffler Outlet Connection: Slip-Fit
  • Muffler Outlet Diameter: 2.50 IN
  • Muffler Outlet Location: Dual
  • Muffler Outlet Quantity: 2
  • Muffler Part Number: Kit Only
  • Muffler Quantity: 1
  • Muffler Series: 50 Series HD
  • Muffler Type: Chambered
  • Part Type: Exhaust System
  • Pipe Color: Silver
  • Pipe Material: 409 Stainless Steel
  • Product Type: Exhaust System
  • Sound Level: Aggressive / Moderate
  • Spring Bolt Kit Included: No
  • Tail Pipe Outlet Outside Diameter: 2.50 IN
  • Tail Pipe Quantity: 2, Dual
  • Tail Pipe Tapered Outlet: No
  • Type: Cat-Back
  • Valve Actuator Included: No, Reuse OEM
  • Valve Included: Yes
  • Valve Type: OEM-Style Valves

Installation Notes:

Only fits models with bumper exhaust bezels.

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