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Rod Length Center-to-Center = 129
Impreza EJ253 MY05-06
COBB 5-speed MT has packaged a complete range of shifter upgrades into a discounted kit
Utilize Cobb OTS (Off The Shelf) maps for very basic setups or have your car pro-tuned to unlock its full potential
This is necessary due to the variation in rotational speed while cornering due to the different arc radii that each wheel travels
RalliSpec EJ25 Short Block S4 (1150bhp) - Race Spec Pro Air Temp Rod Length Center-to-Center = 129RELY ON RALLISPEC'S 25 YEARS OF SUBARU ENGINE BUILDING EXPERIENCE For those of you ready to really turn up the heat, we offer our Race Spec series of closed deck short blocks. These short blocks feature 14mm head stud machining and are optionally machined to accept Fire Lock head gaskets for serious combustion pressure sealing capabilities. The Race Spec Pro utilizes our new IRP pistons, the optimal 2618 piston to provide both incredible power
