coz i already have the 2.1 engine and everything fitted in my mk4 xr3i and its pulling the shell to pieces , have been advised that the mk5/6 shells are stronger however i will have to suffer a bit in handling as there not ment to be as good as the mk4 this is not my opinion so please dont bite my head off

i dont have an opinion on this as i have never driven a high powerd mk5/6 to compare it too??