You carnt just stick a tdo5 on and expect it to work.There is a lot of factors involved,ie the health of the engine and will you have enough fuel to deliver for the td05.And you have to be really carefull with the boost as well because unless the engine is forged the std engine is like chocolate and imo I wouldn't run anything more than a bar of boost till its been looked at.In my experience I would start with a stage 0 tune consisting of oil and filter,spark plugs and a compression test.Spark plugs may even want upgrading to PFRB7 plugs from the PFRB6 plugs