Installed an oil cooler, Big Bore Kit, increasing your Redline, or planning on something extreme like a Turbo on your Zuma or BWS 125? Then you'll need more oil flow, and get the best with the KOSO High Flow Oil Pump! Rated at 10ml/m, the KOSO Oil Pump is a 25% increase in flow when compared to stock! So you get increased oil flow and better reliability with the CNC Machined KOSO High Flow Oil Pump!