[Supernaut]

Honestly, I went with an aquamist with the rx7 summer because it was the only kit at the time that specifically had measures to deal with our two different size injectors. Aquamist is also renowned for their high quality and service but they aren't know for being cheap. I paid ALOT for mine. Check out the aquamist forums. RichardL had a group buy with the newest version of the rx7 summer. Maybe he has extras. I also really like aquamist because it has a flow sensor gauge so you will notice any partial clogs or anything like that from inside the car. It's pretty damn awesome.

I pick up water/meth from summitracing. Last time I checked, they had cheap shipping on boost juice so I bought a TON.