That is a big turbo for that spec, a T34 with .48 will clear 380bhp, minimal lag and power from low down, not such a big hit which with your light car the tyres will thank you for. If however you intend to upgrade to top400bhp then this should be a wise investment and you will need the spacer... and wastegate...does it fit under your bonnet they are usually tight with a T3 arent they?