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Message: <blockquote data-quote="KL2DC" data-source="post: 160134" data-attributes="member: 3452">As mentioned, unless you go for the type 162, e90 wheels always look very tucked in at the back (look at it from front 3/4 angle). Actually, even the OEM 18" wheels benefit from mild 12mm spacers. On my 156s, the 15mm increase in rear track, fills in the rear fenders more convincingly (more flush) and its a decent aesthetic mod for USD 120. They are safe as long as you have the proper length bolts and use quality spacers that are hubcentric. Handlingwise, my butt dynometer tells me my 15mm spacers have added a touch of understeer (makes sense as increased rear track, increases rear grip) but at the same time, the steering response seems a little more livelier (good and bad). I am playing around with different air pressure settings to find the right balance. On the 325i, the factory front air pressure settings are way lower than the rear - to dial in safe understeer, so dialing the front settings up, neutralizes (noticeably) the handling, but at the same time I like the heavier steering feel with the factory settings. Another reason, I've been playing with the air pressures is to improve fuel economy and I plan to auto-x the car soon. Fyi: spacers are primarily used to clear wheel fitments and for aesthetics and in the rare case when an increased track is required to tune handling etc. Info on my Rogue Engineering Spacers here: <a href="http://www.rogueengineering.com/Merchant2/merchant.mvc?Screen=CTGY&Category_Code=WH" target="_blank">http://www.rogueengineering.com/Merchant2/merchant.mvc?Screen=CTGY&Category_Code=WH</a></blockquote>

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