Just putting this here for you NC owners.......
Mazda MX5 2.0 NC Throttle body kit includes fuel injection inlet manifold, two connected TB twin throttle bodies (ITBs), a single piece aluminium billet fuel rail, 40mm long airhorns and bungs to blank the injector holes in the head. The throttle bodies and all Jenvey accessories are engineered for Motorsport, offering excellent performance, reliability, lightness and value. Ideal for road, track or rally use this kit fits the Mazda MX5 and anyone else using the 6 speed mazda MX5 gearbox.
http://www.jenvey.co.uk/home/throttl...45-kit-ckmz04a
I believe that REV9 Autosport is the North American Distributor?
http://rev9autosport.com/brands/h-m/...-dynamics.html