When I ordered the throttle bodies from TWM, I purchased them without the injectors (which took about $400 off of the price).  I have a set of RC440 injectors as well as a set of pink-top NB injectors.  Both sets are cleaned, flowed, and ready to install.  Unfortunately, neither set fits the throttle bodies.  The the body of a stock Miata injector is too short for the TWM’s, and the diameter of each end is also different.

I ordered this set of injectors from TWM.  They are Bosch EV6 injectors.  I installed the injectors yesterday.  With the injector installed and the throttle bodies off of the engine, it will be a lot easier to customize the injector harness.  Lucky for me, the injector plugs for the RC engineering injectors are the same as the ones on the Bosch injectors, so I’ll be able to reuse ‘em.

PICTURES: Bosch injectors, fuel rail, throttles.