Flowmaster 40 Series Delta Flow Muffler - 2" Center Inlet / Outlet GBDSSI Machined Ports: These manifolds have

Machined Ports: These manifolds have both the inlet and the outlet ports machined for a smooth transition and optimal flow path for improved throttle response

1600 / 5600 RPM

Not intended as direct replacement for late-model vehicles due to hood and cowl clearance

Vapor Guard hose must be used with Vapor Guard hose ends and clamps (other hose barb style fittings or hose ends may damage the inner liner on the hose) Vapor Guard is not Recommended for Vacuum applications

Capillary Tube with a 1/2

Flowmaster 40 Series Delta Flow Muffler - 2" Center Inlet / Outlet GBDSSI Machined Ports: These manifolds haveThis 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