The Warhorse Performance modular diffuser is a great addition to your track/race car. Constructed out of 1/8″ aluminum, it is both lightweight and durable. Because of it’s modular design, you can easily replace broken/bent parts. This diffuser is Miata specific, and utilizes a mildly aggressive AOA with an increasing radius, as opposed to other diffusers with 1 set angle. Mounting hardware is not supplied, you will have to come up with a way to mount it. This diffuser has been track tested and will balance a track car with a splitter/air dam combo nicely. All Warhorse Diffusers are made to order.