Flowmaster 40 Series Delta Flow Muffler - 2.5" Center Inlet / Outlet 2070117 best with upgraded exhaust and

best with upgraded exhaust and 2000+ stall

Cutlass Salon 1980-1975

1979-2000 GMC K3500

5L Ti-VCT and 5

Flowmaster 40 Series Delta Flow Muffler - 2.5" Center Inlet / Outlet 2070117 best with upgraded exhaust 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 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