Flowmaster 80 Series Cross-Flow Muffler

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Fitment Info

Aggressive sound muffler Oval-cased design Available in stainless and aluminized steel Manufacturer's warranty Made in the USA

Our #1 value is customer service.

We believe in doing right by our customers, no matter what it takes.

In keeping with that, we offer a “perfect fit guarantee” that ensures your satisfaction on 3 levels: low price, free shipping, and perfect fitment.

- Alan Marek, Founder of PartCatalog.com

The Lowest Price Anywhere--Guaranteed

At PartCatalog, we’ll beat any competing vendor’s price. And we’re so confident in our rock-bottom prices that we’ll refund the difference if you find a lower price elsewhere.

Free Shipping Both Ways

Our “free shipping both ways” policy means that returns and orders ship free of charge. When you place an order, you pay only the list price and any applicable taxes. We cover the shipping to save you money and ensure timely delivery.

100% Guaranteed to Fit

In the highly unlikely event of a fitment problem, we’ll return your purchase at no cost to you. We pay return shipping on all orders, so it won’t cost you a penny to send back a defective part.


  • Aggressive sound muffler produces a powerful sound that increases with acceleration
  • Oval-cased design for improved sound control, torque and exhaust flow
  • Choose between stainless steel and aluminized steel
  • Flowmaster's guarantee of superior quality and performance
  • Made with authentic materials in an economy-building industry
Aggressive Sound Muffler

Aggressive Sound Muffler

The Flowmaster 80 cross-flow muffler spares not a single decibel of sound and will surely give you the ultimate muscle-car thrill on the road. It goes all the way to produce an aggressive and powerful vroom that will catch everyone's attention.

Oval-Cased Design

Oval-Cased Design

The muffler features an oval-cased design that contains sound and releases it in a powerful growl. This design ensures improved sound control, unhindered exhaust flow, and generally impressive torque.

Available in Stainless and Aluminized Steel

Available in Stainless and Aluminized Steel

It is available in both stainless steel and aluminized steel. Both come in excellent quality and will give an exemplary performance. It is only a matter of which one best complements your exhaust system.

Manufacturer's Warranty

Manufacturer's Warranty

The manufacturer provides a limited lifetime warranty for every purchase of stainless steel Flowmaster 80 cross-flow muffler, and a 3-year warranty for one made with aluminized steel. It is a guarantee that you have the best quality, craftsmanship, and performance in your hands. If you need any help or further information about your warranty, feel free to get in touch with PartCatalog.

Made in the USA

Made in the USA

Your muffler is proudly made in the USA using local materials, technology, and labor. Your purchase helps thousands of Americans every year to get jobs and keep them.

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Lifetime Limited Warranty applies to Flowmaster stainless steel mufflers (excluding FlowFX series).
Three (3) Year Limited Warranty applies to Flowmaster aluminized steel mufflers.
Part Numbers

The following part numbers are available in this product line:

42582, 42583, 43083, 52580, 525802-L, 525802-R, 53083, 842583

To purchase this product for your vehicle, please select the Year, Make and Model of your vehicle at the top of this page.

Buick (1985-1987)


Chevrolet (1967-2004)

Camaro, Chevy II, Corvette, Nova

Chrysler (2011-2014)


Pontiac (1967-2002)


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