hi again iv got a mk5 1.8 efi and it very sadly blew the bottom end today the pistons went though the side of the block iv brought a mk6 gti 130 bhp engine will this go stight into my car without hassle and will my ecu be ok or will i have to change it and alos will the be a big power gain i was thinking of putting a rst into it but would this be to much trouble would love to hear ppl views thanks