RCM 14/12mm Superstud Cylinder Head Stud Kit
£569.99
This Superstud head stud kit from RCM (14mm/12mm) is made from aircraft-grade S99 steel for Subaru EJ-series engines. Supplied with 12x ARP M12x1.25 8740 chromoly nuts and washers and compatible with RCM head gaskets.
SKU: RCM2903
EKS Fitment Advice
EKS currently identifies this product as Shared / Application Fitment
Compatibility of any product, greatly depends on model + year + trim + mods. Most Subaru’s are in different states of tune, so please contact Rich, from EKS to get clarity before purchasing.
Potential Applications
Subaru Impreza 1992-2000 (GC/GF), Subaru Impreza 2001-2002 (GD/GG Bugeye), Subaru Impreza 2003-2005 (GD/GG Blobeye), Subaru Impreza 2006-2007 (GD/GG Hawkeye), Subaru Impreza / WRX STI 2008-2013 (GR/GV), Subaru WRX STI 2014-2021 (VA/VAB), Subaru Forester 1996-2002 (SF), Subaru Forester 2003-2005 (SG early), Subaru Forester 2006-2007 (SG facelift), Subaru Forester 2008-2013 (SH), Subaru Legacy 1992-2003, Subaru Legacy 2003-2009 (BL/BP), Subaru Legacy 2009-2014 (BM/BR)
Full List of EKS Fitment Evidence Types
For context, here are all categories of fitment according to EKS.
- Direct Fitment: means the product is currently listed as fitting the model/generation shown.
- Shared / Application Fitment: means the product may suit shared Subaru platforms, engines, turbos, drivetrains, brakes, cooling/intake setups or modified applications.
- Universal / Service Item: means the product is broadly useful for Subaru servicing, maintenance, workshop use or general ownership.
- Needs Confirmation: means the product appears relevant, but final fitment may depend on extra details.
Product Description
The RCM 14mm/12mm Superstud head stud kit replaces the standard 11mm Subaru cylinder head bolts with a larger-diameter stud and nut system, manufactured from aircraft-grade S99 steel.
- Larger-diameter stud, compatible with RCM head gaskets
- Supplied with 12x ARP M12 x1.25 8740 Chromoly 12-point nuts
- Supplied with 12x ARP 12mm 8740 Chromoly washers
- Hex feature in the stud end to aid installation
Each kit includes an RCM assembly lubricant formulated with Graphite DJ technology, to help achieve accurate installation torque.
Please contact Scooby Upgrades to confirm compatibility with your vehicle before ordering.

























