I'm about to take delivery of '17 M2 and I'm keen to get started on the mods. Car will probably never be tracked and will only be driven hard in short bursts as opposed to prolonged sessions (cops in Australia are ruthless). I'll be doing decat DP, intercooler + charge pipe and BM3 stage 2 93oct/98ron tune with no other mods planned.
I know 6 inch intercoolers are usually recommended for those mods but due to the lack of track work and nature of driving will a stepped 5 inch intercooler be suitable? Don't really want to go bigger and introduce unnecessary lag if I can avoid it.
Thanks
