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Home  /Performance  /Exhausts & Mufflers  /Mufflers  /Flowmaster 80 Series Cross-Flow Mufflers

Flowmaster 80 Series Cross-Flow Mufflers

Product Information
List Price:$142.00 - $176.00
Our Price:$126.95 - $157.95
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  • Aggressive sound and increased power/torque output over stock
  • Available in stainless steel or aluminized steel
  • 409S Stainless Steel muffler backed by lifetime warranty
  • Available with either single or dual outlets
  • Made in the USA - Santa Rosa, CA

Flowmaster has been making quality, high performing mufflers for any applications for decades. Their 80 Series exhaust is no exception and carries the Flowmaster torch with pride.

The Flowmaster 80 Series Cross Flow Mufflers are the most versatile muffler for performance applications. The oval-cased design of the Pro Series delivers excellent sound control, giving moderate exterior sound with minimal interior resonance. At the same time, Flowmaster delivers unmatched power and performance for gas or diesel applications.

Backed by a lifetime warranty you know that this muffler will never leave you stranded and sound incredible for years to come. Available with free shipping at

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Spec Sheet
MATERIALAluminized Steel
California Residents: Prop 65 Warning


Flowmaster mufflers are designed to work with new or existing exhaust systems. They offer slip on installation and can be welded or clamped into place. Due to the use of heavier materials,Flowmaster recommends spot welding the joints when using clamps. On some applications it will be necessary to cut or splice when adding Flowmaster mufflers to an existing exhaust system.


Flowmaster is offering a lifetime limited warranty on their stainless steel 80 Series Cross-Flow Mufflers and a 3 year limited warranty on the aluminized steel 80 Series Cross-Flow Mufflers.