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Fitting kit for installing the RCM324 unequal-length or RCM2110 equal-length manifold kits on non-twin-scroll Subaru Impreza Turbo models. Includes genuine Subaru gaskets and high-tensile fasteners.

Group N breather hose kit for the Subaru Impreza (GD/GG Bugeye/Blobeye/Hawkeye), 2001-2007, designed to work with a Group N turbo intake hose (SEN1038) that has its breather ports removed.

RCM 1300cc high-performance top feed injector kit for Subaru Impreza GD/GG (2001+), a direct replacement for the 565cc standard units. Supplied with O-ring seals and electrical connectors; an uprated fuel pump is recommended (see RCM2338).

RCM 1050cc high-performance top feed injector kit for Subaru Impreza GD/GG (2001+), a direct replacement for the 565cc standard units and compatible with a top feed conversion kit. Supplied with O-ring seals and electrical connectors; an uprated fuel pump is recommended.

RCM stainless steel open neck de-cat downpipe for Impreza 1992-2000 (GC/GF), not suitable for twin scroll turbo. 3″ pipework reducing to 2.5″ at the centre section, rated up to 350bhp. Track use only; requires the RCM612 fitting kit.

RCM 3″ stainless steel open neck de-cat downpipe for JDM twin scroll turbo Impreza models. Designed for engines producing in excess of 350bhp, with an additional lambda boss for performance mapping. Fitting this part will alter engine emissions.

RCM de-cat exhaust up pipe for single scroll Impreza turbo models, 1992-2007.

RCM 2.5″ de-cat front exhaust pipe for UK/Euro spec Impreza WRX and WRX STI (2001-2005). Removes the secondary catalytic converter restriction and includes a threaded boss for the secondary lambda sensor.

RCM 2.5″ centre exhaust pipe for Impreza 1992-2000 (GC/GF) models, hand crafted in stainless steel to fit standard back box and downpipe assemblies. Requires the RCM611 fitting kit.

RCM 2.5″ centre exhaust section for Euro-spec Impreza models from 2001 onwards, including the 2006 2.5-litre Impreza. Removes the restriction of the standard silencer and fits standard back box and downpipe assemblies.