Process West Intake Manifold - FA 2L WRX
2015 - 2021 Subaru WRX, (VA)
The Process West DITTO (Direct Injection Tubular Original) represents the pinnacle of intake engineering for the FA20DIT platform. By combining a precision billet plenum with high-flow, large-bore cast runners, the DITTO manifold delivers the highest intake flow rates currently available for the VA WRX.
Engineering & Performance
Developed over 12 months of rigorous in-house R&D, the DITTO manifold is designed to optimize cylinder filling through increased plenum volume and computer-tested internal porting.
No Tune Required: As part of our ‘NO CEL’ range, this manifold can be installed on a completely stock vehicle without triggering a Check Engine Light or requiring a custom map.
Proven Gains: Performance increases are immediate and measurable even on standard vehicles, with gains scaling significantly as power levels increase on tuned applications.
Build Quality: A premium hybrid construction utilizing billet and cast aluminum for maximum strength under high boost.
Versatility & Fitment
The DITTO is designed as a direct-fit solution for vehicles already equipped with Process West cooling systems, though it is compatible with a wide range of setups.
Front Mount Intercoolers: Direct fit for all kits that utilize the stock inlet manifold.
Process West Verticooler: Requires fitting kit (Part Number: PWIM007VFT).
Other TMICs: The Khanacooler and other aftermarket top-mounts may require minor modifications to mounting brackets and under-hood ducting.
DITTO RACE: The 1000+ HP Solution
For high-horsepower builds, we offer the DITTO RACE version. This variant includes four additional injector ports designed to house any EV-14 specification fuel injector.
This provides tuners the flexibility to supplement the factory direct injection with port injection, delivering the fuel volume necessary to support 1000+ hp builds. While Process West provides the manifold functionality and hardware, an aftermarket ECU or injector driver is required to manage the secondary fuel system.
Note: For maximum results, we recommend pairing the DITTO manifold with high-flow charge pipes and optimised intercooler setups."