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Cylinder 4 cooling has long been a known issue on the EJ Family of Subaru engines. The nature of the water passageways around this area means a lack of cooling can lead to an increase in the temperatures around this cylinder.

RCM's simple solution to this problem lies in our easy to fit complete kit. Billet fittings are banded in place on our custom 90 degree Samco silicon hose, which you simply fit into the unused port at the back of the block at cylinder 4's location. This is then tee'd into the water matrix pipe directly above using the supplied HiGrip stainless steel fittings. The billet barb fitting is of the correct diameter to allow the right flow rate around cylinder 4 to cool without over cooling, and the 90 degree pre-formed Samco hose ensures that this flow is maintained without disturbance from potential kinks in the pipework.

Suits all EJ Engines

Resin Poured Star Shaped Tsurikawa

Dusty Pink/Raspberry Strap

Hand Made in House

 

*Please note these are for ornamental use only,

not to be used as a pull handle or for towing*

Resin Poured Cat Shaped Tsurikawa

Dusty Pink/White Strap

Hand Made in House

*Please note these are for ornamental use only,

not to be used as a pull handle or for towing*

PLEASE NOTE: FUEL LINES AND INJECTORS ARE NOT SUPPLIED WITH THIS KIT.

Designed for the MY15+ FA20DIT WRX the Process West ‘DITTO’ (Direct Injection Tubular Original) compromises a mix of billet plenum and cast large bore runners to achieve the highest intake flow rates possible.  Over 12 months from initial design to testing on our own in-house WRX has allowed us to ensure not only guaranteed performance gains (see attached dyno sheet of a totally standard WRX with and without DITTO) but also perfect fitment. Note DITTO is a direct fit for Process West top and front mount intercooler equipped vehicles.* (see application notes below).

Power gains come from computer designed and tested internal plenum porting and an overall larger volume and greater runner capacity for optimal cylinder filling. Not only does DITTO offer these advantages but it is also part of our new ‘NO CEL’ product range that allows fitment to a totally standard vehicle with no Check Engine Light or Tuning required. Obviously even further improved results can be achieved in tuned versions of the FA20, with our experience showing the greater the power output, the greater the gains!

The Port Injection DITTO RACE version provides unmatched tuning flexibility in the form of an additional 4 port injector mounts. Designed to take any EV-14 specification fuel injector this delivers tuners the flexibility to add substantial extra amounts of fuel from an aftermarket ecu/injector driver to give a true 1000+hp worth of capacity. Whilst Process West don’t offer the computer hardware, we do deliver the functionality that highly tuned engines need.

*APPLICATION NOTES

Process West VERTICOOLER requires fitting kit – Part Number: PWIM007VFT HERE

Process West DITTO will directly fit with all front mount intercooler kits that use the stock inlet manifold.

Process West DITTO may require other brand (non-Process West) Top Mount Intercoolers have bracket modifications to fit.

For cars requiring even more power in the upper rev range the track version can be supplied with shorter billet TGV's (lower runner section). HERE

Process West 2015+ WRX TGV Deletes 

Resin Poured Heart Shaped Tsurikawa

Light Grey/Black Strap

Hand Made in House

 

*Please note these are for ornamental use only,

not to be used as a pull handle or for towing*

Resin Poured Totoro Shaped Tsurikawa

Mint Green/White Strap

Hand Made in House

*Please note these are for ornamental use only,

not to be used as a pull handle or for towing*

Resin Poured Totoro Shaped Tsurikawa

Mint Green/White Strap

Hand Made in House

 

*Please note these are for ornamental use only,

not to be used as a pull handle or for towing*

Resin Poured Cat Shaped Tsurikawa

Mint Green/White Strap

Hand Made in House

 

*Please note these are for ornamental use only,

not to be used as a pull handle or for towing*

STI Engine Short Block Assembly EJ257

Manley 4340 H-Tuff Con Rods 

So how much more can you do with a blow-off valve? Well, the Deceptor Pro II takes the ‘Respons’ concept even further...

• Remote proportional venting bias/volume control- from silent to loud or anywhere in between
• Sleek, compact in-car BOV volume controller with backlit dial
• End point adjustment to control maximum vent to atmosphere bias setting
• Volume adjustment mechanism driven by a high-torque geared electric motor
• Durable, low-friction gear train supported by precision sealed ball-bearing
• Supplied with all parts and wiring required to have it up and running quickly and easily

Suits:

• 01-07 Impreza WRX & STI  
  
• 08-21 STI Only
• 05-07 XT Forester (Facelift Model)

Install Guide

Using GFB’s TMS technology the Mach 2 can help return the engine to peak boost up to 30% faster than a factory diverter valve when shifting gears (more information below).

• Recirculation model for direct factory replacement for performance without the noise
• Atmosphere venting kits to convert the recirculating valve if you want noise with your performance

Like the Respons and Deceptor Pro II, the Mach 2 is available in a range of bolt-on kits for most popular turbo models. And when we say “bolt-on”, that’s exactly what we mean! No additional adaptors, parts or vehicle modifications are required – simply remove the factory bypass valve and replace it with the Mach 2 – it’s that simple!

The Mach 2 is configured as a 100% recirculating valve (i.e. bypass, plumb back) and add on kits are also available to convert to 100% atmosphere venting.

Use the recirc model for direct factory replacement when you want the performance WITHOUT the noise! Add the conversion kit when you want some noise with your performance!

Factory bypass valves have two main shortcomings – one is that they are typically designed to start opening above a certain pressure to protect the engine, and the other is they are not optimised for throttle response. Oh, and you can’t vent them to atmosphere without stalling your engine…
The Mach 2 solves all of these issues. It can effectively hold unlimited boost (unlimited in that no turbo could ever produce enough pressure to damage it), and the TMS technology ensures maximum throttle response

ACL Race Series Oil Pump

From the makers of ACL Engine Bearings comes a new line of high performance oil pumps Subaru applications.

Tuning Notes:

Because this upgraded solenoid affects the way that your vehicle controls boost, it is always recommended that you consult with a tuner immediately following installation. It is not recommended that you drive the car in a way that builds boost without doing so. If you have any questions, don't hesitate to get in touch with us directly!

Suits:

• 01-07 WRX & STI

The Stage 1 clutch kit uses an upgraded pressure plate with increased clamping pressure, combined with an organic friction disc. Stage 1 delivers substantial increases in performance and power holding capability whilst retaining near factory type driveability, and is designed primarily for high performance road going vehicles.

These kits feature a high quality cover with increased clamping force compared with standard, between 20-40% depending on the demands of the individual vehicle.

They use an organic friction disc to retain drive-ability similar to standard.

Specifications:

• Torque (Nm/ ftlbs) INC FOS 460/ 340
• Clamp Load 1050Kg (25% inc.)
• Flywheel Step -2.0mm
• Clutch Disc Diameter 230mm
• Clutch Disc Spline Count 24
• Clutch Disc Spline Diameter 25.2mm
• Weight 6.4 Kg

Suits:

• 06-07 WRX
• 08-14 WRX
• 15+ WRX***
• 08-12 Forester (SH)
• 10-14 Liberty GT (BM, BR)

 Note: Some makes and models may have had previous conversions or modifications, if unsure please contact us or use ask us form below.

*** Check With VIN

60mm x 10m

Titanium Heat Wrap. Perfect for Headers, Extrators or Down Pipes

Reduces engine bay tempratures

Protects other components from heat damage

Reduces the risk of fire

Capable of widthstanding more than 800 Degrees Celsius

Stainless Steel Ties also included