Radium Engineering Injector Seats (22mm) Subaru WRX STI (EJ257)

Radium Engineering Injector Seats (22mm) - Subaru WRX STI (EJ257)

These Radium Engineering 22mm injector seats (SKU 20-0171) convert OEM side-feed injector ports to accept top-feed injectors with a 14mm lower O-ring. They are the same seats used in Radium's 20-0568-02 top feed conversion rails for certain Subaru EJ engines, including the early EJ257.

The CNC-machined aluminium seats are finished in green anodising and press into the intake manifold/TGV injector ports with no modification. The included FKM O-ring seals each seat into the machined injector counterbore to prevent vacuum or boost leaks.

Choose a single seat (SKU 20-0171) or a set of four (SKU 20-0171-04) from the variant selector.

Note: One seat is needed per injector, so a four-cylinder EJ needs four. Measure your lower injector O-ring before ordering to confirm it is 14mm. Installation by a professional is recommended.

Features

• Converts side-feed ports to top-feed
• 22mm seat for 14mm lower O-ring injectors
• CNC-machined aluminium, green anodised
• FKM O-ring included
• Press-fit into the manifold/TGV ports – no modification
• Compatible with petrol, ethanol and methanol
• Sold as a single or a set of four

Pairs Well With

• Radium Engineering Top Feed Fuel Rail Upgrade - Subaru WRX / STI (EJ20 / EJ25)
• Radium Engineering Top Feed Upgrade Fuel Rails (Top Port) - Subaru WRX / STI (EJ20 / EJ25)
• Radium Engineering Fuel Rail Plumbing Kit (Series) - Subaru WRX / STI (EJ20 / EJ25)
• Radium Engineering Fuel Rail Plumbing Kit (Parallel) - Subaru WRX / STI (EJ20 / EJ25)
• Radium Engineering Intake Manifold Gasket - Subaru WRX / STI (EJ20 / EJ25)

Need help confirming fitment? Contact our team at sales@chicaneaustralia.com.au.