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      02-06-2013, 08:38 PM   #15
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Drives: 2015 M4 DCT
Join Date: Jan 2012
Location: Montreal

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2018 Audi RS3  [0.00]
2015 BMW M4  [4.29]
Originally Posted by signes View Post
What are "comp package seats"? All seats in the M3 are the same. Also I am close to 6'4", have a sunroof and have no issues with helmet clearance (and no, not riding gangsta...)
Actually not. Some seats have the adjustable lumbar support and side bolsters, some don't. Having been in the non-adjustable kind as a passenger, I can attest that you move quite a lot in them.

In my car I do have the adjustable kind. For the track, I completely deflate the lumbar support so I lay deeper in the backrest and have more contact with the side bolster. I then tighten the side bolster until I am nicely snug.

I then use the belt tightening technic specified by OC3 and Estoril Blue.