Pentroof has developed the best system to bypass your heater hose.
In the NA6
& NA8 roadster engines, if you bypass the heater hose from the cooling watner, you can reduce the path that the coolant has to travel you can make your cooling more effective.
Rear cylinder heat temperature is stable and easy to accumulate by this, to prevent overheating while controlling the water temperature rise. Recommended for circuit driving.
Note: No Thermostat is supplied with this kit, only all the parts shown.
If you do not see your part listed, or have any questions, please make an enquiry. We are happy to answer.
Mazda - Roadster - NA6CE/NA8C - Water Bypass Kit
Roadster - NA8C
Roadster - NA6CE
US $ 204.02