Originally Posted by MDORPHN
I'm intrigued by using the N55 midpipe, but wondering whether there will be any clearance problems between the M3-sourced rear subframe on our 1Ms and the resonator at the rear end of the N55 midpipe.
I wouldn't think so. I had the M3 suframe bushings on my 135i and granted, didn't have an N55 midpipe, but no issues with either the stock midpipe nor the MadDad.
Is the resonator at the end of the N55 really that much bigger than the N54? The bushings didn't seem to be bigger, it was just their construction thwat was different IIRC.
2011 BMW E82 1///M: AW, ZPP+ZCV, HK, Apps; Akra CF+Valve control, MadDad mids, K&N, Forge FMIC, P3gauge, EuroTails, Tint, CF Mirrors+Spoiler+Roof+RevoZ diffuser, 10mm H&R, IND grills+gills, xCDV, LUX AE
2008 Audi B7 RS 4: Sprint Blue, Audi Exclusive Euro Interior, Premium+Titanium Package, EPL Tune, Stasis Ohlins MS coilovers, Milltek valved exhaust+DownPipes, Stoptech lines, Tint, ADR V1, Lidatek, Lamin-X, Strasse Forged SM7 3-piece concave wheels, 275/30/19 PSSs, Euro flat-bottom steering wheel, JHM SSK