Flowmaster 40 Series Delta Flow Muffler - 2.5" Offset - Inlet / 2.25" Dual Outlet H775CBFM Engages spring lock in optimal

Engages spring lock in optimal location

1985-1990 Ford Bronco II

4L Gen III HEMI engines with fuel injection

Works with M-55HV oil pump

1960-1961 Dodge Phoenix

Flowmaster 40 Series Delta Flow Muffler - 2.5" Offset - Inlet / 2.25" Dual Outlet H775CBFM Engages spring lock in optimalThis 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