• The Flowmaster 50 Series HD Muffler is specifically designed for high-horsepower trucks such as turbo diesels, Hemis, and performance-modified engine models
• Provides a big boost to sound, horsepower and torque
• Adds the aggressive Flowmaster exterior tone outside, with reduced interior resonance
• The Flowmaster 50 Series HD boasts a beastly chamber size for handling big engines under large loads
• Drops engine compartment heat by as much as 200°, extending the life of engine parts
• Quality Flowmaster muffler crafting uses aluminized steel for corrosion resistance and precise mig welds for maximum durability
• Casing embossed with the Flowmaster name
• Your Flowmaster 50 Series HD Muffler carries a 3-year warranty

The stock muffler riding underneath your high-horsepower truck is holding back power, torque and throaty tone. Swap it out for a Flowmaster 50 Series HD Muffler, and unleash the beast beneath your hood!

Specifically made for the dominating engines of modified trucks, turbo diesels and Hemis, the Flowmaster 50 Series HD turns your favorite sled into a dominating road beast with the famous Flowmaster aggressive tone. It puts big horsepower at the pedal for towing, hauling, or just cruisin'.

The Flowmaster 50 Series HD also boasts a larger chamber size, designed to handle large engine loads. It also reduces engine compartment heat by as much as 200°, extending the life of critical engine parts.

Each Flowmaster 50 Series HD Muffler is built with top-quality 16-gauge aluminized steel for corrosion resistance and fully mig-welded for maximum durability. Best yet, your Flowmaster 50 Series HD Muffler boasts a 3-year warranty.

Flowmaster 50 Series HD Mufflers come in a variety of inlet/outlet configurations and sizes, shown above. Select the inlet/outlet diameter you need from the drop down at right.

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50 Series Heavy Duty Race Mufflers The stock muffler riding underneath your high-horsepower truck is holding back power, torque and throaty tone. Swap it out for a Flowmaster 50 Series HD Muffler, and unleash the beast beneath your hood! Specifically made for the dominating engines of modified trucks, turbo diesels and Hemis, the Fl From: $148.16