I think most of today's cars have a dual-mass flywheel. It helps to keep the chatter down and absorb vibration. The 1M's unit is just a lighter weight version and shouldn't have a problem taking on additional torque.
You've got to have a very understanding service department to get a way with a warranty issue like a HPFP failure or any engine related problem with aftermarket downpipes installed. Normally, changing anything with a sensor in it or having an affect on a sensor is a no-no.
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'12 E92 M3 | 6MT | ZCP
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