My recollection is they primarily delt with hotroding EA 81.....The EJ 25 is 150 -175 stock.I have stock 03 legacy that I redid upper end and have dealt w Ross @ SDS, They have been supplying ECU and related for 20 years ! I also have PRSU from Air trikes,as well as 3 blade prop,have not flown due to weather(high winds) ,but taxi testing will put you back in seat and scare you ! ! Only things I would change if money allowed: lite weight intake manifold, light weight exhaust manifold .I am computer challenged,don't know what airplane you want to Install suby, but feel free to contact by my email,
pvnyejag2@juno.com and I. Can forward photos or text 845 464 6328 to see if available to chat .....Tom