- Single 2-1/2″ Offset Inlet
- Single 2-1/2″ Offset Outlet
- Lowest Back Pressure of All Popular Turbo Mufflers Tested
- Large Diameter Flow Tubes
- Careful Application of Aerodynamic Principles to Achieve Maximum Exhaust Gas Flow
Hooker 21109HKR Single 2-1/2″ Offset Inlet, Single 2-1/2″ Offset Outlet


