Process West DITTO Street Intake Manifold - Subaru WRX VA 15-21

Process West DITTO Street Intake Manifold - Subaru WRX VA 15-21

Part Number: PWIM007

New release from Process West! The DITTO (Direct Injection Tubular Original) intake manifold offers improved intake aerodynamics allowing for big horsepower potential from stock power levels all the way through to big built engine setups.

Compatible with factory throttle body and EGR systems to allow for true bolt-on performance even for emissions controlled vehicles. Also compatible with the Process West Verticooler and Process West Front-Mount Intercooler kits.

The street version of the DITTO intake manifold is for those working within the limitations of the factory direct injection fuel system and are not looking to add additional fuel rails or injectors in the future. For those chasing big horsepower the RACE version features EV14 fuel rail injector bosses and includes matching fuel rails.

Engineering & Performance

Developed over 12 months of rigorous in-house R&D, the DITTO manifold optimises cylinder filling through increased plenum volume and computer-tested internal porting.

• No Tune Required: As part of the '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: Premium hybrid construction utilising billet and cast aluminium 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 utilise 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, the DITTO RACE version 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.