apexi can raise the boost but only as far as about 1.1bar due to it using the standard subaru map sensor. To go higher you need to buy either the apexi boost control kit or turn boost control off on the ecu and bypass it with something like an avcr. A dawes can be used to do this but a bit crude. Map to 1.45 mid range dropping to approx 1.25 depending on injector flow. A dawes will not allow yout to tail off the boost.
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