Supposedly.I know it is a bit of a drive, but might be worth speaking with Sakebomb Garage up in Fremont near San Jose. They do have a dyno, own a 124 shop car, and have the ability to tune our cars using the OpenFlash tuner.
They are also well versed in turbos on lots of cars. Mainly RX-7s and Miatas.
I have bought a lot of stuff from Sakebomb/Miataspeed and I still have not received any information about them doing a custom Openflash tune for me. They requested I email them for more information and I am still waiting for a response.
I ran the normal Openflash tune for a year. Then I switched to the Tork tune. I liked the Tork tune more. However, I am getting to the point in my modification journey to where I want to explore different parts and I will need custom tunes for that. Tork has gone completely dark on the 124 and I don't think he would do custom tunes, anyways. I REALLY hope Miataspeed gets back to me very soon on what plans they have for their 124.