Darton Iron Dry Sleeves - Subaru EJ25 Models (inc. 2004-2021 STI)

Spectral Performance proudly carries Darton Sleeves for those of you who want to build your car to handle a substantial amount of power.

On this page, you are looking at the Darton Dry Sleeves which are sold as a complete set. These have been designed to provide your cylinder walls with brutal reinforcement when running all of the boost, and running all of the power.

HIGHLIGHTS:

• BORE: 3.890
• OD: 4.250
• OD2: 4.200
• WALL: 0.180
• LENGTH: 4.800
• FLANGE THICKNESS: 0.500
• FLANGE DIAMETER: 4.600
• Sold as a complete set of 4 sleeves
• Come as a 99.5mm bore and can be bored out to 102mm