caps thanks, sorry been out of town, missed your response last week. Anyway yeah guys at the shop kind of told me the same. Let them settle, then see? I'm also running tire pressure the same 36f 40r. But their still telling me the tire size is to high? See what happens? Kind of bummed, thought putting the pss9's on, would have been the answer to both the look and performance. Meanwhile..got the look, now need the performance!

 

so got car back from dealership service and adviser tells me car pulling on crowned road surfaces is a natural characteristic of the car and that there's nothing wrong with the suspension/steering components. Its really weird that its so noticeable on the stock pirelli 18's, but with the PS2 19's its not an issue.
Oh well...

 

Well, that's good that you have found the problem. The shaking, pulling and shimmy of the steering wheel problems are difficult to diagnost. Porsche and BMW are so sensitive to the road surface thanks to their amazing handling power. Cheers,

 

For what it is worth....I drive in and out of NYC every day on PS2's for summer and Blizzaks for winter (both 18s). I note varying degrees of tramlining on very specific sections of road and each tire set-up performs differently over these sections (generally the PS2 are just better for obvious reasons).

So, one issue is our roads, one is the width of these tires and the other is the tire brand. Perhaps it is time to ditch the Pirelli's - I used to run Pirellis on my S4 and I really didnt like them (P Zero Nero)

 

agree, those zero neros aren't cutting it. i'm ready to switch back to the PS2's asap! too bad my boy who used to be mktg head @ michellin is now at Pirelli!!! He hooked me up w/ free set of PS2's before leaving and now i may have to switch to Pirellis!!!!