Destroy or Die EGR Blanking Kit SpecificationsThe exhaust gas recirculation system (or EGR valve) of the Mazda MX-5 is activated at cruising speed and redirects some of the gases into the intake to achieve better fuel efficiency and reduce emissions. However because of the way it works it can clog the intake manifold and many users decide to delete it.If this solution which consists in taking out this device does not directly increase engine performance (at full load the EGR valve remains closed) it can be useful on the racetrack because it removes weight from the car and makes it easier to work on the engine.Made in the UK by Destroy or Die this kit for the MX-5 NA and NB with 1.6L or 1.8L engines consists of two precision-cut 3mm aluminium plates and premium stainless steel hardware. It allows the EGR valve to be removed quickly and easily and as it affects the vehicle's emission control system is intended for off-road use only.