Darton Seal Tight Sleeves for Subaru EJ25 (300-031-3D) Energy Suspension • Available with or without

• Available with or without stainless hardware

and no gasket is required

• Setting Time Range: ：1

• Exceeds SFI 3

Each wire is fitted with a positive locking

Darton Seal Tight Sleeves for Subaru EJ25 (300-031-3D) Energy Suspension • Available with or withoutDarton Dry Seal Tight sleeves for the EJ25 Subaru WRX and STi engines replace your factory cylinder liners with a stronger, more durable and longer lasting surface that can hold more power and may be bored further than stock. A "Dry Sleeve" means that the sleeve does not contain water or coolant passages bored through the top flange. This solid design provides a more rigid structure to prevent warping and sleeve expansion. Darton cylinder head sleeves