Originally Posted by Reigns
Ah ok. N54 in 135i next to N54 in 1M. Lightened flywheel, bigger intercooler, chipped up power output. Am I missing anything? Drive train there are a heck of a lot of differences no doubt about that!
Apologies if my responses are kinda nooby!
Same intercooler. Different high flow downpipes, dual mass fly wheel, tune, aux radiator... and most important, a 'go faster' ///M badge engine cover.
So many 1M haters here