741-B Coffin Muffler

Built for Performance. Designed to Turn Heads.

The 741-B Coffin Muffler is THE COFFIN MUFFLER's most versatile performance muffler — engineered for hot rods, custom builds, and street machines that demand a deep, aggressive exhaust note with adding tremendous flow!

Why the 741-B?

• Compact coffin-shaped design fits tight spaces where traditional mufflers won't
• Available in 9 inlet/outlet configurations from 2¼" to 3" — fits a wide range of builds
• Dimensions: 22" x 9" x 4" — big sound!
• Straight-through performance design for maximum exhaust flow
• Built tough from quality materials for long-lasting durability

Choose Your Size

Select your inlet and outlet diameter from the dropdown to match your existing exhaust system. Not sure what size you need? Measure your current pipe OD (outside diameter) before ordering.

Made in the USA by THE COFFIN MUFFLER — the original coffin muffler, add performance to your ride!