Cobalt Coolant Reroute Kits - MX-5 Mk1-2.5

The MX-5's engine was originally designed to be transversely mounted in a FWD car, meaning that in its longitudinal layout, the cooling system is compromised when running more than standard power due to Mazda having to shift around some of the components, which worked great for packaging, but has a hindrance on coolant flow. To fix the issue we moved the exit back to its rightful place and restored the correct flow of coolant through your engine.

This kit comes with our custom-machined thermostat spacer. We designed the spacer to retain the factory coolant temperature sensor positions, which means no cutting or extending those wires.
The Cobalt one-piece coolant hose, included in this kit, cuts down on failure points and is made of silicone so it will last longer than rubber.
Finally, we include hardware and gaskets, as well as complete instructions to make installation as easy as possible.

This kit does not include a thermostat, allowing you to make your own choice when it comes to keeping the coolant temperature under control.

For thermostats, please see the Cooling system section of our website.

Note:
If you wish to retain the factory EGR system, please choose the correct product.