






Slowboy Racing
Subaru WRX/STI EJ257 Short block Rebuild Replacment
Fitting:
Fitting
We can collect your Subaru and carry out a full engine replacement.
We offer comprehensive EJ25 engine replacement and performance upgrades tailored to your Subaru WRX or STI (2007 onwards). This is a workshop service item.
Our Standard Replacement Service Includes:
- Genuine Subaru EJ257 Short Block Assembly Type RA (with improved piston design)
- Full fitting service, covering all parts, labor, and VAT.
- Enhanced reliability with RCM head studs and stopper gaskets for a superior head seal.
- Complete component replacement: Timing belt kit, Cylinder head service, OE Oil pump, Sump, and all necessary gaskets and seals.
Performance Upgrade Option:
- For those seeking increased power, we offer RCM Omega drop-in pistons (from £889), allowing for a recommended safe limit of 400 BHP. This upgrade includes all the components of the standard replacement service.
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