Hi all, my 94 import wrx has an fcon v fitted piggy backed to a prova ecu, is there a more tunable ecu by that I mean nobody but an hks dealer can tune the fcon and being from Japan probably different anyhow. Main issue is that there is no mass airflow anymore just map sensor. Could I go down the apexi route like many on here do?.......Dont want another melted piston!

 

the Simtek ecu doesn't use the MAF www.jollygreenmonster.co.uk is just one of the mappers

 

Are'nt they locked to one mapper aswell? Want to be able to map it myself.....

 

I don't know that but give Simon (jollygreenmonster) a pm or email to get the facts

 

Just refit a MAF? A 160 can be had for peanuts.