Flowmaster 40 Delta Flow Muffler - 2-1/2 in Offset Inlet - 2-1/2 in Center Outlet - 13 x 9-3/4 x 4 in Oval Body - 19 in Long - Black Paint - Universal 842541 H77215FM plexiglass chamber sealing plate and

plexiglass chamber sealing plate and complete instructions

1996-2008 Chevrolet Express 1500

1956-1964 Cadillac Series 60 Fleetwood

3 / 4-Bolt Flange

They will not fail

Flowmaster 40 Delta Flow Muffler - 2-1/2 in Offset Inlet - 2-1/2 in Center Outlet - 13 x 9-3/4 x 4 in Oval Body - 19 in Long - Black Paint - Universal 842541 H77215FM plexiglass chamber sealing plate andThis 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 standard 40 series. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability. Features: Durable Fully Welded 409 Stainless Steel Limited Lifetime Warranty Aggressive To Moderate