Quote:
Originally Posted by sparoz
GruppeM
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do you feel any difference between gruppe m and stock ?
can you post some pics of it please
i am planning to get the simota CF ( the copy version of the gruppe m )
or to get a drop in filter because i've tested the AFE on a 335i for a friend ans i was running an INJEN DCI both cars same setup DCI and COBB , the injen was faster and noticed difference but i dont want to get INJEN for the 1M because its very hard to install it and it needs a drilling to get it fitted on a 1 series N54