Currently running stock ecu and with the ct9 blitz k1 EWG do I go for the JDM JAM ecu or the EMB mapping at TD... Here are my pro's to con's opinions. The emb will be a more precise map with my mods and can have td look over the whole thing and most likely make more power than a plug n play! Great pro! Cons, takes up my glovebox space as I don't fancy it hanging around the floor, plug n plays are dropping in price so there's £150 ish savings plus the petrol drive which is another £100ish. If I change any mods it will need another map. The plug n play is built for the ct9 and is known to do the job fine, it's simple to install and can get the fuelling set up off a local evo tuner, all I would like is a reliable 200 hpish I could probably get the same outcome either way I choose, I just don't know what to do obviously a bigger turbo would be best with the map but the plug n plays are made for what I have. I have seen some people running 230 on plug n play.