We developed this ducting kit for our Ecoboost ND's to keep coolant temps at bay on track. But it can be used and adapted to any stock or boosted stock engine ND Miata needing more cooling efficiency too.
The efficiency gain with no hood latch is a calculated 10.5% just based off of surface area.
Please contact us if you want the built in oil cooler.
THIS KIT REQUIRES CUTTING THE OEM CRASH BAR AND PART OF THE OEM RADIATOR/BUMPER SUPPORT