Inlet Manifolds & TGV Deletes

The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple prototypes and a ground up fully featured design process that makes this…

Tumbler Generator Valves (or “TGV” as they are most commonly referred to) can be found on Impreza WRX, Forester Turbo and Legacy GT models from 2001 onward. Their prime purpose is to reduce emissions from cold idle to meet standards governed by the EU emissions regulations (similar regulations also exist for both the US and…

The RCM drive by wire electric throttle body has been designed and engineered specifically for Subaru applications, for vehicles using a reversed inlet manifold configuration. Manufactured from machined billet aluminum housings, it is fully assembled and ready to bolt directly to your reversed manifold, it is balanced and calibrated to a set idle condition. Patented…

The RCM O Ringed Thermal spacer kit contains everything required to install our Phenolic Spacers to your Subaru. The kit is designed to aid in the reduction of the air inlet temperatures in the inlet manifold, by isolating the manifold from the heat travelling through from the engine’s cylinder heads. Sealing between the spacers, manifold…

The RCM O Ringed Thermal spacer kit contains everything required to install our Phenolic Spacers to your Subaru. The kit is designed to aid in the reduction of the air inlet temperatures in the inlet manifold, by isolating the manifold from the heat travelling through from the engine’s cylinder heads. Sealing between the spacers, manifold…

The RCM O Ringed Thermal spacer kit contains everything required to install our Phenolic Spacers to your Subaru. The kit is designed to aid in the reduction of the air inlet temperatures in the inlet manifold, by isolating the manifold from the heat travelling through from the engine’s cylinder heads. Sealing between the spacers, manifold…

One of the most prominent parts in any Subaru engine bay is the inlet manifold. All too often this large part is overlooked, which can detract from even the most detailed of vehicles. Offered on an exchange basis, the RCM refurbishing process brings your own manifold back to life, in the familiar crinkle red finish,…

Tumbler Generator Valves (or “TGV” as they are most commonly referred to) can be found on Impreza WRX, Forester Turbo and Legacy GT models from 2001 onward. Their prime purpose is to reduce emissions from cold idle to meet standards governed by the EU emissions regulations (similar regulations also exist for both the US and…

Tumbler Generator Valves (or “TGV” as they are most commonly referred to) can be found on Impreza WRX, Forester Turbo and Legacy GT models from 2001 onward. Their prime purpose is to reduce emissions from cold idle to meet standards governed by the EU emissions regulations (similar regulations also exist for both the US and…

The RCM Gen2 Alternator Relocation kit has is designed to enable more space to be created, essential when reversing the intake manifold. This kit is designed to be used with the conventional OEM power steering pump and alternator configuration. This complete kit has a number of enhancements on previous solutions to the problems faced when…