Quote:
Originally Posted by SlicktopTTZ
Thanks for the review, very detailed!
So while doing the factory tour, there was no mention of modified turbos or an upgraded head or valve-train?
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no mention of a change to the turbos.. As far as engine internals... simply tighter tolerances and uprated piston rings... No parts changes... Since I don't own a 135... even though we looked under the hood.... I can't comment on size... It was clear from the employees that the N54 was considered superior to the N55, and it also costs more to build.