Id say honestly about 210ish, I know there bout that standard but ya could be loosing power not having the ecu set up for different set up i.e your fmic exhaust and aswell as that horses running away on ya over the year.,
but you will get around the 280ish mark if you get a map. boost controller will only get you so far, wouldnt be too healthy running a whack loada boost either on a standard engine.....