if i was you mate turn the boost down to save to motor and save some ££££ get and fit a RS500 cooler you see them on here and ebay for about £150 then get a set of 55.Siemens about £220/£240 then book it in and have it maped on a set of rollers about £350 and your car will last . the thing with getting a chip off the shelf its not 100% set for your car it will still need the EFR setting up . wot ever you do dont by second injectors