Flowmaster

Flowmaster 20-25 GM 2500/3500HD 6.6L FlowFX Cat-Back Exhaust System

FLO717927
$1,209.99 AUD
Price Includes all Duties & Taxes
Shipping from USA warehouse. 2–3 day processing; 7–10 day delivery. Special-order dispatch timing to be confirmed. Bulky or heavy items may require a freight quote.
Available for preorder

Product details

Flowmaster's® Flow FX Cat-Back exhaust system for the 2020-2026 GM 2500HD and 3500HD trucks with the 6.6L gas engines gives you a great way to help you customize your GM truck 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 409 stainless steel Flow FX series "straight-through" muffler for great sound and maximum performance and no drone. The muffler then connects to the factory tailpipe for a simple and effective performance upgrade. Max dyno gains of 11 hp and 10 lb-ft at the rear wheels. This results in better acceleration and towing performance. The system uses all the factory hanger locations and connections for an easy installation that you can do at home. Kits include installation instructions and all necessary hardware. Backed by Flowmaster's Lifetime Limited Warranty.

  • A tuned Flow FX style muffler delivers a deep, aggressive to moderate performance tone and improves exhaust flow with no drone
  • Kit includes complete hardware and factory styled hangers in the stock locations for an easy installation
  • 3.5-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
  • Max increases of up to 11 hp and 10 lb-ft over the stock exhaust at the wheels
  • Tuned performance muffler eliminates interior drone
  • Maintains factory warranty
  • Lifetime Limited Warranty

This Part Fits:

Year Make Model Submodel
2020-2026 Chevrolet Silverado 2500 HD Custom
2020-2026 Chevrolet Silverado 2500 HD High Country
2020-2026 Chevrolet Silverado 2500 HD LT
2020-2026 Chevrolet Silverado 2500 HD LTZ
2020-2026 Chevrolet Silverado 2500 HD WT
2024-2026 Chevrolet Silverado 2500 HD ZR2
2020-2026 Chevrolet Silverado 3500 HD High Country
2020-2026 Chevrolet Silverado 3500 HD LT
2020-2026 Chevrolet Silverado 3500 HD LTZ
2020-2026 Chevrolet Silverado 3500 HD WT
2020-2026 GMC Sierra 2500 HD AT4
2024-2026 GMC Sierra 2500 HD AT4X
2020-2021 GMC Sierra 2500 HD Base
2020-2026 GMC Sierra 2500 HD Denali
2022-2026 GMC Sierra 2500 HD Pro
2020-2026 GMC Sierra 2500 HD SLE
2020-2026 GMC Sierra 2500 HD SLT
2020-2026 GMC Sierra 3500 HD AT4
2020-2021 GMC Sierra 3500 HD Base
2020-2026 GMC Sierra 3500 HD Denali
2022-2026 GMC Sierra 3500 HD Pro
2020-2026 GMC Sierra 3500 HD SLE
2020-2026 GMC Sierra 3500 HD SLT

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