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      01-06-2013, 10:41 PM   #435
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bigjae1976's Avatar

Drives: 11 E90 M3 Individual
Join Date: Mar 2006
Location: Wichita, KS

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2004 BMW M3  [4.50]
2011 BMW E90 M3  [5.00]
2013 BMW 328i  [5.00]
Originally Posted by Wookie420 View Post
It clearly states for all applications in parentheses. And I wasn't talking about the Pro. Just the regular quick fit.

As far as the dangers with the belt being routed downward, it has to do with how the force of an impact is distributed across your body and the harness. If routed incorrectly or at an unapproved angle, the shoulder belts will basically compress, and break, your spine.

That's how it was explained to me anyway.
Yeah, the belt must not be angled sharper than 45 degrees downward behind the seat for a Rallye4. Otherwise, you need a Rallye3. I don't think you'll run into that issue with the E9X. The only question is seatback strength.

My take is you're a safer driver when you aren't bracing yourself and diverting energy to keeping yourself in place. While locking the seatbelts and CG locks are OK, I still think the Rallye4 is a better alternative. Personally, I'm willing to assume that the seat back strength is adequate. Nothing leads me to believe otherwise.

I'm installing the R55 Mini harness this week so I can use my HANS.
2015 F34 328iX GT Glacier Silver
2011 E90 M3 Monte Carlo Blue
2004 E46 M3 Imola Red