I've checked all hoses large and small to and from turbo and no problem there. I took MAF sensor off and cleaned, went for a run, was the same, disconnected MAF sensor on way back and would'nt rev over 2500rpm, actually struggled to get up a little incline (not justifiable to call a hill). It has most power between 2500 - 3250rpm which is vertually non existance.
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