Flowmaster American Thunder Exhaust for Silverado 1500/Sierra 1500 | FLO238921

Flowmaster American Thunder Cat-Back Exhaust | 817853

Product Specifications:

• Diameter (IN): 3 Inch To 2-1/2 Inch
• Exhaust Tip Material: Stainless Steel
• Exhaust Tip Size (IN): 3-1/2 Inch Diameter X 13 Inch Length
• Exhaust Tip Type: Round
• Exhaust Type: Single
• Exit Position: Dual Out Rear Exit Under The Bumper Or Dual Split Rear Behind Rear Tires Exit
• Includes Exhaust Pipe Muffler Delete: No
• Includes Exhaust Tip: Yes
• Includes Hardware: No
• Includes Muffler: Yes
• Material: Stainless Steel
• Muffler Brand: Flowmaster
• Muffler Configuration: Single Inlet, Dual Outlet
• Muffler Quantity: 1
• Outlet Type: Dual
• Sound Level: Moderate And Aggressive
• Type: Cat-Back

Fitment Chart:

Chevrolet Silverado 1500 exhaust system

The Flowmaster 817853 American Thunder exhaust system delivers exceptional performance for a reasonable price. It is assembled with the best quality parts, each individually crafted and handpicked for the ultimate exhaust flow.

Aggressive tone muffler

The exhaust system includes a 44 series Flowmaster muffler. It is louder than most stock mufflers with a mild interior drone and aggressive exterior tone. It is made of premium grade stainless steel for superb strength and excellent performance.

Optimal Chevrolet Silverado 1500 performance

The manufacturer has tested the exhaust system on the dyno and proved its quality, performance, and adherence to industrial standards.

Undeterred exhaust flow

The Flowmaster 817853 American Thunder exhaust system also features a mandrel-bent tubing. This allows the exhaust gases to flow smoothly without any deterrence.

Easy bolt-on fitment

The exhaust system is easy to install. It has factory mounting points for a full bolt-on installation. The purchase includes all installation hardware including clamps and bolts. It is advisable to have a professional do the job for the best error-free fitment.

Made strong to last long on your Chevrolet Silverado 1500

The Flowmaster 817853 American Thunder exhaust system components are made with high-grade steel. It is strong and virtually indestructible. It will withstand years of use to maintain its strength and value.

Limited lifetime warranty

Flowmaster offers a limited lifetime warranty to the stainless steel exhaust systems. A 3-year warranty applies to the aluminized steel exhaust systems. This is a guarantee of superior quality and expert crafting.

Proudly made in the USA

True to its name, the Flowmaster 817853 American Thunder is proudly made in the USA. Expert crafters manufacture each part form the finest and most authentic steel in the industry. The company also creates jobs for thousands of Americans every year and uses locally made materials.