Hi i have standard version 2 sti ra. I am planning to fit the usual headers, up + down pipes, new exhaust system, replacement air filter element and sx fuel pressure regulator.
WIll i need an reprogrammable ecu to make the engine safe to run without detonating? The car will be used for rallying and sprint events.

 

with all those exhaust mods i would seriously consider it , its cheaper than an engine

 

And it will be a whole lot quicker once mapped for the mods.

 

Looks like Steve simpson at Town End Garage will have to put gems or motech on the old girl.........
cheers

 

Mark,
YHM.....