Flowmaster Exhaust Chevy Silverado / GMC Sierra 2.7L (19-24) 2.50" Catback - American Thunder 818113

American Thunder® is the ‘original’ Flowmaster sound. In most cases a very aggressive sound level, American Thunder systems use various chambered mufflers to achieve the performance gains and aggressive sound that you want from your car or truck, inside and out. Available in stainless steel or economical aluminized steel, American Thunder systems are a great choice when you want to be heard.

Fitment Information

• Chevy Silverado / GMC Sierra 2.7L (2019, 2020, 2021, 2022, 2023, 2024)
• 2 & 4-wheel drive

Emissions Compliance

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Specs & Features

• Emission Code: 5
  
• Exhaust Series: American Thunder
  
• Exit Position: DOR/S
  
• Inlet Tubing Diameter: 3.50
• Material: 409 Stainless Steel
  
• Mount Type: Uses Factory Hangers
  
• Muffler Body Length (in): 22
  
• Muffler Color: Black
  
• Muffler Finish: Painted
  
• Muffler Inlet Diameter: 3.50
  
• Muffler Inlet Location: Centered
  
• Muffler Material: 409S Stainless Steel
  
• Muffler Outlet Diameter: 2.50
  
• Muffler Outlet Location: Dual Inlet
  
• Muffler Overall Length (in): 28
  
• Muffler Part Number: Kit Only
  
• Muffler Quantity: 1
  
• Muffler Series: 50 Series Big Block
  
• Muffler Shape: Oval
  
• Muffler Type: Reflection
  
• Product Type: Exhaust System
  
• Single Dual: Dual
  
• Sound Level: Moderate
  
• System Type: Cat-back
  
• Tip Cut: Angle
  
• Tip Diameter: 3.50
  
• Tip Edge Style: Cut
  
• Tip Finish: Polished 
  
• Tip Length: 13
  
• Tip Logo: Embossed
  
• Tip Material: 304 Stainless
  
• Tip Quantity: 2.00
  
• Tip Shape: Round
  
• Tip Style: Double Wall
  
• Tubing Diameter (in): 2.00
  
• Tubing Material: 409S Stainless Steel
  
• UPC: 090127615539
  
• California Proposition 65 Chemical Name: Chromium (hexavalent compounds) / Nickel (Metallic)
• California Proposition 65 Required: Yes
  
• Part Number: 818113

Product Description

This Flowmaster® American Thunder® cat-back exhaust system for the 2019-2024 Chevrolet/GMC Silverado/Sierra with the 2.7-liter engine is manufactured using durable 409 stainless steel throughout and features dual 2.50-inch mandrel bent pipes for better exhaust gas flow, and an American Thunder muffler is used for a moderate sound level and maximum performance. Gain up to 4 hp and 11 lbs-ft of torque at the rear wheels over stock. This system exits dual out the rear or dual out the side, with dual 3.50-inch polished tips for added style and a custom look. The system uses all the existing factory hanger locations and includes installation instructions and all necessary hardware for an easy installation that you can do at home. Backed by Flowmaster's Lifetime Limited Warranty.

Features:

• Dual 2.50-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
• Dual 3.50-inch polished tips exit dual out the rear or side for a custom look
• Includes complete hardware and factory styled hangers in the stock locations for an easy installation
• 50 Series Big Block performance muffler delivers a deep, moderate performance tone and improves exhaust flow
• Flowmaster’s Lifetime Limited Warranty
• Gain up to 4 hp and 11 lbs-ft of torque at the rear wheels
• Fits 147-inch and 157-inch wheelbases

Redline360 is an authorized Flowmaster dealer and sells only genuine Flowmaster products.