High Speed Industries 3/8″ Inline Water Restrictor.
This simple water restrictor installs inside of Your 3/8″ cooling line.
The restrictor is designed to accept Mikuni main jet to control flow of water. This small restrictor is ideal for exhaust stingers and it works great with a flow control valve.
Mikuni Main Jet NOT included – we recommended sizes from 120-200 Mikuni Main Jets