Flowmaster 40 Series Delta Flow Muffler - 2.5" Offset - Inlet / Same Side Offset Outlet LK22374 Inflation hose extension kit

Inflation hose extension kit

For Big Block Chevrolet engines originally equipped with exhaust valve rotators

EGT Probe 1/4 in Compression to 1/8 in NPT Male

Right hand threads are standard

Flowmaster 40 Series Delta Flow Muffler - 2.5" Offset - Inlet / Same Side Offset Outlet LK22374 Inflation hose extension kitThis 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