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      12-07-2012, 08:57 AM   #126
shivaswrath
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Drives: 2012 335i
Join Date: Apr 2008
Location: Lost in NJ

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Quote:
Originally Posted by bananachipz
Quote:
Originally Posted by shivaswrath View Post
So I had a chance to rail on it on the way home, there wasn't any traffic, plenty of quick turns, merges, etc.

First impression carries: PLANTED. The ARB's give me a little more leverage in kicking the tail out (dangerous, I know, on snow tires); the dampening and rebound keep the body roll in check.

Pertinent negatives: the rebound rate at speeds above 80mph can be...bouncy. There are a lot of road imperfections in CT and It's def noticeable when traveling fast (I was going between 80-105mph). Now, I didn't notice this at legal highway speeds, so do withit what you will.

Would I spend $2900 in parts+labor to do it again? Probably...is it better than checking off a $1,000 adaptive suspension or $1800 more in the M Package? Unsure, haven't tried either.

Bear in mind, my last performance sedan was a Mitsu Evo VIII - that suspension was STIFF. This is 2 notches below an M3.


Spring part numbers:
Front: 31-33-6-851-922
Rear: 33-53-6-851-930
Correct Front Sway bar:
Front: 31-35-6-792-119


this is weird. BMW Canada is saying I need different springs to maintain the50/50 when used with the M Performance kit. According to them, the springs you've listed are option 704 springs (sport suspension), and when they look in the ETK for the springs with M Performance, it comes up with 621 and 630, not 922 and 930.... They even showed me screenshots of the ETK catalog. When 704 (sport suspension) is chosen, your above springs are indicated. When "BMW Performance" is selected instead of 704, 621 and 630 are indicated. I'm mobile, but can pm you the pics later.
Please don't tell me they installed the wrong springs lol...oh well.
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