Flowmaster 40 Delta Flow Muffler-2.50 Center In / 2.25 Dual Out - Aggressive Sound Steering Componets GM A-Body 1968-77

GM A-Body 1968-77

15" Extended length

2 1/4" long Fan Spacer Kit

Pit Stop USA offers Camshafts like Comp Cams Xtreme Energy Hydraulic Rotor Camshaft - Lift 0

GMC: Sierra 2500 99 - 04 6 L Engine

Flowmaster 40 Delta Flow Muffler-2.50 Center In / 2.25 Dual Out - Aggressive Sound Steering Componets GM A-Body 1968-7740 Delta Flow Muffler 2. 50 Center In 2. 25 Dual Out Aggressive Sound Universal Muffler Not a direct fit. Some adaptation required. This 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