Rear Diffuser (Underdiffuser) and optional exhaust combo made by Aimgain for the ND (2016+) MX-5. A very racy style, this diffuser will radically change the appearance of your Miata and also adopt the use of a center exhaust. Aimgain says it's made for their original exhaust, but will also work with custom exhaust setups. It will only work with CENTER EXIT exhausts. For the exhaust Aimgain offers two options; a stainless or stainless and carbon fiber combination. Learn More