Gibson Performance 421887 Gibson Performance Muffler — Vicious Offroad Skip to content

Gibson Performance - Gibson Performance Muffler P/N 421887

  • Fully Welded Stainless Steel Construction
  • Baffled and Chambered Design
  • Maximum Exhaust Flow
  • Increased Power
  • Better Volume Efficiency
  • Unrestricted Flow

  • Stainless - 8 in. Round Body - 3 in. Offset Inlet - 3 in. Offset Outlet - L-24 in. Gibson SFT Muffler delivers the powerful "big block" sound at the tailpipe with more usable pulling power and torque! The Gibson difference is that our mufflers are quieter inside the cab than any other aftermarket muffler. Featuring a baffled and chambered Muffler (not packed or screened, nothing to blow out)for better volume efficiency with unrestricted flow. All welded construction.


    Year Make Model