Uk spec Engine Mods
 

I,m currently building a rally car based around a 1999 uk spec impreza,can anyone advise me on how to get a little more power out of my engine.
I have already bought a scoobysport De-cat exhaust and a Prodrive Group N
ecu.Does anyone know anything about this ecu and whether will work with my
engine or what mods i will need to do to make it reliable.
Many thanks.