Introducing the fully remanufactured 2004-2006 Subaru EJ25 STI Turbo cylinder head # Cast B25 004, Our meticulous process includes refacing all valves at a precise 45-degree angle and grinding the seats with a 3-angle valve job to ensure an optimal Seal.
All Heads are resurfaced Pressure tested and include new valve seals. This will include everything you see
in the photos.
head # Cast B25 004
LH/RH Heads
Cam Caps
Rockers
Springs Retainers
Locks
Valve Seals
Warranty Details:
Your warranty coverage commences from the date of purchase for the original owner, offering comprehensive protection for the cylinder head itself. Please note that the warranty does not include any labor costs. To ensure this cylinder head is compatible with your engine, we recommend consulting a certified mechanic.
To maintain warranty validity, it is essential that the heat tab remains unaltered and intact on the cylinder head. Any damage resulting from improper installation, mishandling, overheating, or alterations to the cylinder head will not be covered. Any unauthorized repairs will also void the warranty.
Important Notes:
Please be aware that NO CAM SEALS have been installed on the cylinder head. Your skilled mechanic will need to make necessary adjustments during installation.
Keep in mind that tampering with or removing the heat tab will automatically void your warranty. We urge you to maintain the integrity of the heat tab for your peace of mind.