RCM Powerparts Subaru Impreza V3-V4 STI Subaru OE Profile Camshaft Kit Engine Bearings which you simply fit into

which you simply fit into the unused port at the back of the block at cylinder 4's location

they offer a reduction in weight of 1

The gear knob uses an M12 x 1

RCM offer a number of Engineering services to assist in the preparation of your block including:

Designed for use in racing

RCM Powerparts Subaru Impreza V3-V4 STI Subaru OE Profile Camshaft Kit Engine Bearings which you simply fit intoAs with most vehicle manufacturers, after a period of time certain parts are phased out and are no longer made. They become obsolete making them no longer available from Japan. This is what has happened with the parts numbers for the right hand and left hand inlet and exhaust camshafts for the Subaru Impreza Version 3 4 STI. Not to leave Subaru owners high and dry! we have gone and replicated the profile exactly to allow new componentry to be fitted