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CSP2026

Flowmaster 817602 - Cat-Back System 409S - DOR/S - American Thunder - Moderate Sound

Flowmaster  |  SKU: FLO-817602
Sale price $1,17195 Regular price $1,31895

PLEASE NOTE: Pictures may be representative of style, rather than the actual product. Read the description for more details.

Description

Flowmaster 817602 - Cat-Back System 409S - DOR/S - American Thunder - Moderate Sound

Exhaust System - American Thunder - Cat-Back - 2.5 in Diameter - 3.5 in Tips - Stainless - Polished - GM Fullsize Truck 2011-18 - Kit

American Thunder Cat Back Exhaust System; Dual; Dual Out Rear Side Exit; Incl. 2.5 in. Tubing/50 Series™HD Muffler/3.5 in. Logo Embossed Stainless Tip; 409 Stainless Steel;

The American Thunder(R) 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(TM) 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 in. WB), Crew Cab/Standard Bed (153 in. WB) and Double Cab/Standard Bed (143.5 in. WB).

  • Mandrel Bent Stainless Steel Tubing
  • Includes Hangers And Hardware For Easy Installation
  • Dyno Tuned for Maximum Performance
  • Premium Flowmaster Quality
  • 3 Year Limited Warranty
  • Made in the USA
  • Patented Delta Flow Technology
Brand: Flowmaster
CARB (California) Compliant: Yes
Catalytic Converter Included: No
Catalytic Converter Quantity: 0
Category: Exhaust
Clamping Type: Flat Band
Clamps Included: Yes
Emission Code: 5
Exhaust Series: American Thunder
Exhaust Tip Color: Silver
Exhaust Tip Connection: Clamp-On
Exhaust Tip Cut: Angled
Exhaust Tip Diameter: 3.50
Exhaust Tip Edge: Angle Cut
Exhaust Tip Finish: Polished
Exhaust Tip Intercooled: No
Exhaust Tip Length: 13.00
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 Side
Exit Style: Dual Out Rear
Finish: Natural
Gasket Or Seal Included: No
Grade Type: Performance
Hangers Included: Yes
Heat Shield Included: No
Inlet Type: Clamp-On
Main Piping Diameter: 2.50
Mount Type: Uses Factory Hangers
Mounting Bracket Included: Yes
Muffler Body Height: 5.00
Muffler Body Length: 18.00
Muffler Body Material: 409 Stainless Steel
Muffler Body Shape: Oval
Muffler Body Width: 10.00
Muffler Finish: Natural
Muffler Flanged Inlet: No
Muffler Flanged Outlet: No
Muffler Included: Yes
Muffler Inlet Connection: Slip-Fit
Muffler Inlet Inside Diameter: 3.50
Muffler Inlet Outside Diameter: 3.13
Muffler Outlet Connection: Slip-Fit
Muffler Outlet Diameter: 2.50
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
Sub Category: Exhaust and Tail Pipes
Tail Pipe Outlet Outside Diameter: 2.50
Tail Pipe Quantity: 2
Tail Pipe Quantity: Dual
Tail Pipe Tapered Outlet: No
Tip Logo: Embossed
Type: Cat-Back
Valve Included: No
Valve Type: Not Applicable
Warning: California Proposition 65

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