A friend of mine has a pretty tidy E46 2.0d Touring M Sport and has noticed that the E91 2.0d M Sport is considerably faster so begs the question, what's the difference? I know remapping can impact torque quite effectively but would remapping his E46 take it from the current 150bhp to the early E91's power of 160bhp or even the later E91's of 170bhp? or is there more involved in these new ones that means it's out of reach and he should just save up and buy one?
Thanks.
Thanks.
