According to the press relese I got fron Trinity (Team Epic) the current lines of Ex-Tech and Sirio motors have been dropped. The new line of motors look to have the same block as the Ex-Tech 2's, the heads look to be the same as the Ex-Tech2's but with a new Sirio logo on them and new color. I assume that the head color identifies the type of motor. .12, .21, .24, .27 (for the Traxxas). Not alot of other info was contained in the press relese. When I called Team Epic I was told that the new mills have a new piston, sleeve, and rod. Outside of that the spec's were not known.

So, as to who might still carry the Ex-Tech's? Not many places that I have found. There are a coupl eof places on the flea bay that have new old stock Ex-Tech's and some pipes. Not much found for parts. I hope that the new mills will at least have the same rear baring size as the Ex-Tech's. With some luck, maybe the new parts will work on the old mills in a pinch. Hope that helps for what it's worth.