Flowmaster 40 Series Chambered 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 42541 Brake Rotor Multiple spring rate options are

Multiple spring rate options are also available and have been successfully tested in various applications

Fuel pressure regulator not included

then lined by another layer of Pyrovatex ®

1963-1969 Buick Special

Flowmaster 40 Series Chambered 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 42541 Brake Rotor Multiple spring rate options areThe Original 40 series muffler delivers an aggressive exterior and interior tone. If you're looking for that original Flowmaster sound this is the muffler is for you. 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 And Powerful Exterior Exhaust Tone Notable Interior Resonance Excellent Street Strip And Off Road Application