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Subaru Impreza 2003-2005 Engine Parts
406 products
Showing 25 - 48 of 406 products


At the heart of all Roger Clark Motorsport engine builds is the now world renowned RCM Modified oil pump. This clever, effective modification has been designed to assist the Impreza with its oil supply issues and is now regarded as a "must ...


This simple adptor bolts into place on your block, where you can remove an existing bung. It allows for a Defi type sensor to be installed to monitor either oil temperature or oil pressure, depending on your needs. This removes the need t ...


An essential part of modifying your Impreza engine is having the ability to supply the cylinder with enough fuel during the combustion process. Our 1050cc high performance, top feed injectors are designed to fit Impreza's from 2001 onward ...


Our Fuel Pressure Regulators allow maximum fuel control with absolute minimum flow restriction for engines up to and exceeding 1500 HP. Developed with Advanced Bypass Technology and an Enlarged Port Design to provide accurate fuel pressure ...


Genuine Subaru exhaust manifold to cylinder head gasket.


This gasket is found on all Impreza turbo models from 1992 onwards, with the exception of "twin scroll" Japanese Domestic Market vehicles. The gasket locates between the exhaust manifold up-pipe and the base of the turbo and is held in pla ...


A Genuine Subaru Block Case Bell Housing Plug. Over time these become brittle and hard and the location tags break off.


RCM Billet Block Breather Adaptor. This is to remove the plastic adapter usually found on the PVC system, and would be used when installing a catch tank system.


The RCM Oil Pickup pipe anti surge adaptor is one of the latest additions to our comprehensive range of RCM oil control products for the EJ series engines. The issue of oil surge on the Subaru flat four engine layout is well known and the ...


Inlet Manifold Gasket for all Impreza's 08/1998 on.


This is a great kit when you want to remove the standard OEM oil cooler modine and leave the standard 3 port water pump in place. The kit comprises of: - A male/male adapter to allow you to secure the oil filter directly to block case. -A b ...


In order to fit uprated injectors to your Subaru, you would generally need to cut the existing plugs from your wiring loom, and re-attached the plugs supplied with your injectors to enable them to fit on the loom. Our Plug & Play kit ...


Subaru Rocker Chest Gasket Plug Seal for Impreza's from 08/1998 +

In the ACL Race Series, the unique combination of design, metallurgy and engineering come together to deliver what drivers expect from high performance Tri-metal engine bearings. Designed to withstand higher RPM conditions, ACL Race Series ...


A complete set of replacement block case bolts to compliment any new engine build. Contains all the necessary bolts to join both engine block halves together, offering a perfect fit and improved appearence.

A genuine Subaru dipstick o-ring, 2 will be required per car.


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 configurat ...


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 ...


Introducing our new RCM Gen 3 High Grip Tensioner Bracket Kit! Utilising the latest FEA analysis in order to optimise strength the all new geometry offers much increased component stiffness in critical high stress areas. Now directly compat ...


A genuine Subaru metal gasket which is used to join the turbocharger to the downpipe assembly. This gasket is used on all Subaru Turbo's with the exception of twin scroll models.

Set of 14 Genuine Subaru Sump Bolts, used to fix the sump pan to the engine block. Bolts can also be purchased individually.

Genuine STI Pink performance oil filter. This filter was designed with motorsport in mind, and the requirement for resistance to higher temperature/pressure. Carbon has been intergrated within the design to help prevent the filter element ...


Genuine Subaru exhaust manifold to head stud. These are located on the underside of each cylinder head, and are to fix the exhaust manifold in place. There are 6 per car, you will need to add 6 to your basket if you require all of them. ...


A Genuine Subaru Water Pump Gasket.
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