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Billet fuel rail conversion for the V3/4 inlet manifold on Subaru Impreza GC/GF (1992–2000), allowing higher-flow top feed injectors to be fitted in place of the manifold’s standard injector type. T6061 aluminium extrusion with a black anodised finish.

Billet fuel rail conversion for the V1/2 inlet manifold on Subaru Impreza GC/GF (1992–2000), allowing higher-flow top feed injectors to be fitted in place of the manifold’s standard injector type. T6061 aluminium extrusion with a black anodised finish.

An adaptor that bolts into an existing block bung location, allowing a Defi-type sensor to be fitted to monitor oil temperature or oil pressure. Removes the need for a sandwich plate behind the oil filter to run more than one sensor.

RCM heavy duty block case location dowels (pair), used to replace the standard Subaru dowels between the block halves. Thicker than standard and threaded for easier removal.

These billet aluminium half moon seals (also called cylinder head plugs) replace the OE plastic seals on Subaru EJ-series engines, which can harden and leak over time. Sealed using SGA35 liquid gasket. A complete engine requires 4 seals; sold as x1 or x4.

Forged piston set manufactured by Omega Pistons for a 2.35-litre stroker configuration of the Subaru EJ22 engine. Supplied in 97.00mm standard bore plus 97.25mm, 97.50mm and 98.00mm oversize.

RCM Street Spec forged 4340-steel connecting rod set, positioned between OE and the Arrow H-Section rods and rated by RCM up to 400bhp. Weight-matched to within 1.5g and supplied with 3/8in ARP 2000 fasteners. Not recommended for sequential or flat-shift gearboxes.

Fitting kit for installing a complete 3″ exhaust system on non-twin-scroll Impreza models, including RCM exhaust systems RCM348 and RCM636. Comprises genuine Subaru gaskets and high-tensile fasteners.

2.5″ silicone turbo outlet hose for use on vehicles with a rotated turbo installation. Vehicle fitment for this listing is marked as needing confirmation.

An RCM stainless steel block adaptor that screws into the base of the engine block to connect the oil cooler modine water hose, sized to replace the genuine Subaru part. Stainless steel construction resists the corrosion common to the original steel component.