Now I am thinking that if anything goes wrong with the Dinan exhaust, quality wise etc., since they are very serious about not approving any other tuner's products mated with theirs, they may deny responsibility just because the client prefered not to cut his/her stock muffler and used a custom one to be able to use it. At least on paper they may just say that the issue has something to do with an unapproved connecting pipe because that pipe is not a Dinan or BMW product
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"The mark of a great car is one whose overall competence exceeds what you should expect from its individual components and the 1M does just that", Chris Harris.
BMW 1M-SOLD-: TECH: Evolve Race+N55mids, Evolve IC, Michelin PSS, ER cp, aFe filter, CDVx, Vorshlag camber plates, BMS OCC EXTERIOR: trunk spoiler, blacklines, black grills, IND goodies INTERIOR: Alcantara steering wheel, steel pedals, custom mats, MPower e-brake.