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Xtreme H-Section connecting rod (1mm shorter), manufactured by Arrow Precision from EN24 alloy steel and rated by Arrow Precision for 600bhp and above. Typically paired with a 79mm-stroke crankshaft for increased capacity and torque. Supplied with ARP bolts and assembly lube.

M2000 connecting rod set manufactured by Arrow Precision from ultra-high-strength steel. Ultrasonically tested, crack-detected and balanced to within a gram, with a laser-engraved M2000 logo. Suited to high-boost applications where rod distortion can occur.

Arrow Precision billet crankshaft, 75mm, sold under the RCM/Arrow name for Subaru applications, reverse engineered from the OEM design. Please contact Scooby Upgrades to confirm compatibility with your vehicle before ordering.

Forged piston set manufactured by Omega Pistons for a 2.1-litre stroker configuration of the Subaru EJ20 engine. Supplied in 92.00mm standard bore plus 92.25mm, 92.50mm and 93.00mm oversize.

Forged piston set manufactured by Omega Pistons for the EJ20 engine. Supplied in 92.00mm standard bore plus 92.25mm and 92.50mm oversize. Listed for GC/GF-chassis Subaru Impreza (1992-2000).

Low-compression forged piston set manufactured by Omega Pistons for the EJ25 engine in WRX/STI models from 2006-2013 (V9+). Supplied in 99.50mm standard bore plus 99.75mm and 100.00mm oversize.

Arrow Precision billet crankshaft, 79mm, sold under the RCM/Arrow name for Subaru applications, reverse engineered from the OEM design. Please contact Scooby Upgrades to confirm compatibility with your vehicle before ordering.

RCM alloy/steel vernier camshaft pulley set for Subaru Impreza 1996-1998 (V3-V4). Anodised red alloy outer with a stainless steel inner hub, laser-etched timing markings and a one-piece belt guide. Supplied with ARP high-strength bolts.

RCM alloy/steel vernier camshaft pulley set, listed for Subaru Impreza GC8/GF8 (1999-2001). Anodised black alloy outer with a stainless steel inner hub, laser-etched timing markings and a one-piece belt guide. Supplied with ARP high-strength bolts. Please confirm exact model fitment before ordering.

RCM alloy/steel vernier camshaft pulley set for adjusting exhaust cam timing on 2001-2007 Subaru STI (V7-V9) engines. Anodised black alloy outer with a stainless steel inner hub, laser-etched timing markings and a one-piece belt guide. Supplied with ARP high-strength bolts.