SRWerks is one of the premier Skyline performance and restoration facilities in the United States. Our company has years of experience modifying and restoring Skylines. Our new parts division is now offering low profile drain heads for your Skyline needs. The head drain is made of Bullet Aluminum. The kit comes with the head drain, rubber O-ring and 2 M6 Allen bolts. The part is compatible with NIssan RB 20, 25, and 26 motors. We recommend that installation be performed by a professional tech/mechanic.