RCM 3 Port Boost Control Solenoid Kit
£59.94
RCM 3 port boost controller kit, with plug and play adaptor. Direct Plug and play fitment on MY99+ Subaru Impreza WRX/STI/Turbo/GT models. Essential for any modified Subaru running larger turbochargers and/or higher than factory levels of boost pressure. Utilizing the same Pierburg solenoid unit used by Prodrive in their own 3 port boost solenoid kit…
EKS Fitment Advice
EKS currently identifies this product as Needs Confirmation
Compatibility of any product, greatly depends on model + year + trim + mods. Most Subaru’s are in different states of tune, so please contact Rich, from EKS to get clarity before purchasing.
Potential Applications
Subaru Impreza 1992-2000 (GC/GF), Subaru Impreza 2001-2002 (GD/GG Bugeye), Subaru Impreza 2003-2005 (GD/GG Blobeye), Subaru Impreza 2006-2007 (GD/GG Hawkeye), Subaru Impreza / WRX STI 2008-2013 (GR/GV), Subaru Forester 1996-2002 (SF), Subaru Forester 2003-2005 (SG early), Subaru Forester 2006-2007 (SG facelift), Subaru Legacy 1992-2003, Subaru Legacy 2003-2009 (BL/BP)
Full List of EKS Fitment Evidence Types
For context, here are all categories of fitment according to EKS.
- Direct Fitment: means the product is currently listed as fitting the model/generation shown.
- Shared / Application Fitment: means the product may suit shared Subaru platforms, engines, turbos, drivetrains, brakes, cooling/intake setups or modified applications.
- Universal / Service Item: means the product is broadly useful for Subaru servicing, maintenance, workshop use or general ownership.
- Needs Confirmation: means the product appears relevant, but final fitment may depend on extra details.
Technical Information
Product Type: simple
Product SKU: EKS-RCM-7143121027246
Supplier SKU: RCM3120
Supplier Product Number: 7.14E+12
Supplier Variant Product Number: 4.05E+13
Supplier URL: https://rogerclarkmotorsport.co.uk/products/rcm-3-port-boost-control-solenoid-kit
Product Description
RCM 3 port boost controller kit, with plug and play adaptor.
Direct Plug and play fitment on MY99+ Subaru Impreza WRX/STI/Turbo/GT models.
Essential for any modified Subaru running larger turbochargers and/or higher than factory levels of boost pressure.
Utilizing the same Pierburg solenoid unit used by Prodrive in their own 3 port boost solenoid kit found on the WR1 model the RCM 3 Port Boost Control Solenoid kit allows you to raise the cars boost level beyond factory parameters whilst retaining control and improving turbo response.
What is a 3 Port EBCS and how is it different than stock?
The 3 Port EBCS is a solenoid that does just what the name implies. It controls boost pressure. In a turbocharged vehicle, there are a couple components that make up the boost control system. The wastegate and the boost controller. The wastegate has a spring that is set at a certain pressure and boost is controlled by over pressurizing the spring allowing the actuator to open and bypass hot exhaust gases around the turbine. In order to run more boost than what the spring is rated at, the boost controller will divert pressure and keep the wastegate closed until the desired boost level is reached.
A 3 Port EBCS does this by interrupting the boost signal between a boost source and the wastegate. It then redirects this pressure back to the intake. Typical OEM boost controllers are of the 2 Port variety and operate by bleeding off this pressure signal between the boost source and wastegate. The bleed method is simple, but it also reacts slower than the interrupt method and with less precision.
Why is it a good upgrade?
The 3 Port EBCS is a good upgrade because with better boost control, you get a more precisely dialled in tune.
Actual port size is 5.90mm. We would recommend a 4mm internal diameter hose size.