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      07-24-2020, 07:42 AM   #23
asbrr
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Drives: 2014 335ix M-Sport
Join Date: May 2015
Location: Toronto

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Quote:
Originally Posted by Papa Popov View Post
I'm much more worried about ride quality than looks/fitment, so I'll avoid spacers unless the car looks awful without 'em once lowered. I really appreciate the input. Will start with just the M3 control arms and RSFB inserts. Hoping that the -0.75 degrees of camber will compensate for the rake, even with the minimal lift in the rear from the RSFB inserts.
If you haven't gotten rid of the runflats, do that immediately - that will be a big improvement in ride comfort/quality.

BUT NOTE: The M3 control arms in the front will ADD HARSHNESS if you are sensitive to that. I kind of regret going with these, when my lower control arms needed replacement. Yes they improve feedback and the directness of the front, but the impact harshness for a daily driver in my opinion was too much. To get some camber in the front all you have to do is remove the alignment pin from the top mounts at the front, and you should be able to get up to about -0.75 or so.

Add the Dinan camber plates and you'll have a range of adjustment (because you need to remove the alignment pin) from -1.5 to -2 approximately. And they will add 5mm of height to the front to remove any rake.

Last note - even with non-runflats, the tire you choose will have a noticeable impact. An R-comp or extreme performance tire like an RE-71R will have a much stiffer sidewall than something else. I noticed a nice ride quality improvement with the Conti ExtremeContactSport compared to other similar performance tires. I dind't like the steering response (obviously), but the ride was excellent.
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