Bolt-On Top Mount Turbo BOV Blow Off Valve For Subaru 02-07 WRX EJ20/EJ25 PQY5265
Application:
For 2002-2005 Subaru Impreza WRX 2.0L Turbo (EJ205 Engine)
For 2006-2007 Subaru Impreza WRX 2.5L Turbo (EJ255 Engine)
For 2004-2016 Subaru Impreza WRX STI 2.5L Turbo (EJ257 Engine)
For 2004-2008 Subaru Forester XT 2.5L Turbo (EJ255 Engine).
Features and Benefits:
Powder-Coated Anodized Finish for Reinforced Wearing and Heat Resistance
Large Outlet for Quick Release and Aggressive Sound
Bolt-On Design for Ease of Installation
The Blow-Off valve (BOV) is a pressure relief device on the intake tract to prevent the turbo's compressor from going into surge.
When the throttle is closed rapidly, the airflow is quickly reduced, causing flow instability and pressure fluctuations.
Surge can eventually lead to thrust bearing failure due to the high loads associated with it. Blow-Off valves use a combination of manifold pressure signal and spring force to detect when the throttle is closed.
When the throttle is closed rapidly, the BOV vents boost in the intake tract to atmosphere to relieve the pressure, helping to eliminate surge.
Remark: This BOV should be installed between the compressor discharge and the throttle body, preferably downstream of the intercooler (if equipped).
Dimensions& Material:
2.00" Diameter Housing
1" Brass Piston with Teflon Seal
Material: CNC Machined Aluminum Body for Strength and Durability.
Colour: blue
Flange: 103mm PCD