491123-25

123mm Blow off assembly with 2.5" connectors

  • Sale
  • $1,152.00
  • Regular price $1,440.00
Shipping calculated at checkout.


  • Greatly reduces the risk of Throttle Body and Charge Pipe damage.
  • Creates Low pressure zone to evacuate boost pressure instantly to the blow off valves. 
  • Relieves pressure on the TB blade instantly when the blade closes.
  • Eliminates reversion wave to a Blow off valve downstream in the charge pipe.
  • Directs the air flow correctly through the throttle body to add HP.
  • Billet Aluminum. 360 Degree Clocking.
  • 2.5" V-band Blow off Valves or 3" V-band Blow Off Valve.
  • 2.5" V-band Blow off Valves ( ID 2.437" OD 3.2")
  • 3" V-band Blow Off Valve. ( ID 2.975" OD 3.786")
  • Optional Block off plate for use with 1 Blow off valve.
  • Designed to pair with our High Boost 123mm Throttle Body.
  • Blow off valves are sold separate.
  • V-Band clamps are sold separate.
  • Block Off Plate sold separate.