Flowmaster 40 Series Delta Flow Muffler - 2.25" Offset - Inlet / Center Outlet H770001S Slip and skid resistant fiber

Slip and skid resistant fiber surface

1975-1977 Mercury Monarch

hypereutectic KB -18cc D-cup 4

Will Not work with Hemi

Flowmaster 40 Series Delta Flow Muffler - 2.25" Offset - Inlet / Center Outlet H770001S Slip and skid resistant fiberThis two chamber design incorporates Flowmaster's patented Delta Flow technology. The Delta deflectors generate increased scavenging for better performance and reduced interior sound. Milder exterior tone and reduced interior resonance over Original 40 series. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability. Features: Durable Fully Welded 16 Gauge Aluminized Steel 3 Year Limited Warranty Aggressive To Moderate