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Message: <blockquote data-quote="cw9722" data-source="post: 582126" data-attributes="member: 22397">2 . how does the 528i drive with the 18" M-Rims compared with the 17" on the 520i, will the ride end up stiffer - (which is a problem I encountered on my E90 325i Sports)? Can the built in "driving experience control" negate the firmer ride?Me on 19" front 245/40 and rear 275/35 RE050A,no complaint abt the comfort,only setback is lacking of torque due to bigger rim and tyre-<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite3" alt=":(" title="Frown    :(" loading="lazy" data-shortname=":(" />1. assuming that I will take the risk to chip the ECU before warranty is over, how will the car drive with the additional power? will the dynamics be any different from a 528i and more importantly, is there additional accessories like air in take or other mechanism that the 528i has and not fitted onHave a talk with one of the SA this noon,he say 520i is on stage 0,whereby 528i is stage 1,if u remap the520i may well get the power of 528i,am not sure how true this is--<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" />)</blockquote>