They will fit, maybe runnig on the limit of the fuel pump at 270bhp? You will need to run them at 3bar and have the injection constant mapping areas changed by your tuner or you could trim them using lemmiwinks? (I have never tried it using lemmiwinks but know tuners using it to rescale the fuel)
You might find issues with the MBC and throttle cut running higher boost, for 270-280bhp you will be running 22-23psi.
You might find issues with the MBC and throttle cut running higher boost, for 270-280bhp you will be running 22-23psi.