Flowmaster 80 Series Cross-Flow Muffler

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  • Constructed from 16-gauge aluminized steel
  • MIG welded
  • Two-chamber design
  • Dual performance

Get that aggressive muscle car sound with the Flowmaster 80 Series. This crossflow muffler is designed to be mounted transversely behind the rear axle.

Aside from that aggressive tone, this muffler from Flowmaster will give your vehicle that perfect ground clearance. Expect also increased power with this that will boost your vehicle's performance like you always wanted!

It’s time to replace your stock muffler with the Flowmaster 80 Series. With a heavy-duty stainless steel construction, this is engineered to last. It is also MIG welded to achieve that maximum durability.

Get that true dual performance with this Flowmaster exhaust muffler. With this, you will surely go a long way and it will increase your ride quality. Get ready to hit the road, better, stronger and louder!

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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.
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)