Home » Flowmaster American Thunder Cat-Back Exhaust System - 3 in Diameter - Dual Side Exit - 4 in Polished Tips - 6.6 L - GM Fullsize Truck 2020-21
Flowmaster American Thunder Cat-Back Exhaust System - 3 in Diameter
Flowmaster American Thunder Cat-Back Exhaust System - 3 in Diameter
Flowmaster American Thunder Cat-Back Exhaust System - 3 in Diameter
Flowmaster American Thunder Cat-Back Exhaust System - 3 in Diameter
Flowmaster American Thunder Cat-Back Exhaust System - 3 in Diameter
Flowmaster American Thunder Cat-Back Exhaust System - 3 in Diameter
Flowmaster American Thunder Cat-Back Exhaust System - 3 in Diameter
Flowmaster American Thunder Cat-Back Exhaust System - 3 in Diameter
Flowmaster American Thunder Cat-Back Exhaust System - 3 in Diameter
Flowmaster American Thunder Cat-Back Exhaust System - 3 in Diameter
Flowmaster American Thunder Cat-Back Exhaust System - 3 in Diameter
Flowmaster American Thunder Cat-Back Exhaust System - 3 in Diameter
Flowmaster American Thunder Cat-Back Exhaust System - 3 in Diameter
Flowmaster American Thunder Cat-Back Exhaust System - 3 in Diameter
Flowmaster American Thunder Cat-Back Exhaust System - 3 in Diameter
Flowmaster American Thunder Cat-Back Exhaust System - 3 in Diameter
Flowmaster American Thunder Cat-Back Exhaust System - 3 in Diameter
Flowmaster American Thunder Cat-Back Exhaust System - 3 in Diameter
Flowmaster

Flowmaster American Thunder Cat-Back Exhaust System - 3 in Diameter - Dual Side Exit - 4 in Polished Tips - 6.6 L - GM Fullsize Truck 2020-21

In stock
SKU: FLO817933
Exhaust System, American Thunder, Cat-Back, 3 in Diameter, Dual Side Exit, 4 in Polished Tips, Stainless, Natural, 6.6 L, GM Fullsize Truck 2020-21, Kit

Earn [points_amount] when you buy this item.

$875.95
Sale $1,094.95 $875.95
Free Shipping on orders over $149! Exclusions may apply.
PROP 65: These products may contain a chemical known to the state of California to cause cancer and birth defects or other reproductive harm

Fits 2020-2023 Chevy Silverado/GMC Sierra 2500HD/3500HD trucks with 6.6L gas engine. Crew Cab/6.5ft bed only.Will not fit models with 5th wheel tow hitch installed.

  • Uses the Factory Hanger Locations for Easy Installation
  • 50 Series HD Muffler with Delta Flow Technology
  • 409 Stainless Steel Construction for Long Life
  • Increased Performance and Exhaust Flow
  • Multiple Tailpipe Exits Provided in Kit
  • Large 3.00-inch Dual Tailpipes
  • Deep Powerful Exterior Sound
  • Lifetime Limited Warranty
  • Flowmaster Quality

    • Product Description:

  • Exhaust System
  • American Thunder
  • Cat-Back
  • 3 in Diameter
  • Dual Side Exit
  • 4 in Polished Tips
  • Stainless
  • Natural
  • 6.6 L
  • GM Fullsize Truck 2020-21
  • Kit
    • Manufacturer of performance exhaust systems, mufflers, performance air intakes, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 4 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels. Since 1983, Flowmaster is the company you can trust, and has led the industry in offering only the best products you can buy for your vehicles.