Custom 5.2cc billet inserts.
Maximizing the full power of your race engine with more over rev and mid/top end power for those wide open outdoor tracks.
Housing a smaller 10mm spark plug optimizing combustion efficiently.
Smaller squish band requiring the cylinder to be raised 0.2mm-0.3mm over stock height.
Set to OEM squish specs 75mm-85mm.
NOTE- Requires NGK LR8B spark plug
