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Bilstein B12 Kit Impressions
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07-25-2015, 05:51 PM | #23 |
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Shit man! That could have put stress on the shock piston too and might have shortened it's life.
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07-27-2015, 09:04 PM | #24 |
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Update! Took it back to the shop and they put in a new bolt on the bottom and tightened the upper mount and everything feels great now. I'm still eventually going to get M3 RSFB, but at the moment I am very happy with the car again.
Thanks for the input everyone! |
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07-28-2015, 01:25 PM | #25 | |
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11-30-2017, 04:32 PM | #26 |
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That’s why I don’t trust those race/performance shops. They have ton of cars they need to get through within a certain time frame. Ain’t no quality in that.
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11-30-2017, 08:52 PM | #27 | |
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1) install m3 Control Arms, 2) m3 subframe bushings 3) m3 differential bushings 4) Hotchkiss front & rear sway bar end links 5) new tie rods Do the above & the car will feel extremely planted to the road. it's probably more like 4,000 miles for the b12 kit to fully break in. Remember, you now have a suspension that is regarded as better than the m-sport suspension and is a couple steps shy of the m3. You added some major stiffness to the car. Newton's 3rd law. For every action there is a equal and opposite reaction. You are gonna need to balance some things out now |
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07-11-2018, 08:32 PM | #28 | |
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Thanks |
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07-11-2018, 10:06 PM | #29 | |
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In the front, get m3 control arms & new tie rods. |
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07-11-2018, 10:12 PM | #30 | ||
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I haven't done it, but it's on my list. |
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07-12-2018, 07:58 AM | #31 | |
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07-12-2018, 06:33 PM | #32 | ||
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07-12-2018, 06:36 PM | #33 | |||
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07-12-2018, 08:44 PM | #34 | ||||
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07-25-2018, 03:52 PM | #36 |
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So I have a 335i with M-Sport and considering the B12 kit to fix some handling issues after replacing the stock run-flat tires with non-run flats.
To save installation cost, and because the B12 kits seems backordered everywhere, I am considering just starting with the dampers only. Anyone know: 1. if I can use the B8 dampers with the stock (M-Sport) springs? (or would I need the B6) 2. if this combination makes any sense and should be an improvement? NOTE: The extisting stock dampers are toast at 100K, and that is obviously contributing to the problems below. Before answering, please consider exactly what I am trying to fix. (A) The squishy feel in cornering (excessive roll), (B) less solid/glued feeling at speed, and (C) loss of contact on rough surfaces. Again, the grip is fine and no under/oversteer (on smooth pavement), it just rolls like a boat. On slightly bumpy surface, it gets squirrely and all of the above are issues. [EDIT: Forgot to mention, I am NOT concerned so much with smooth ride quality, and really do not need a compromise here. On the scale of Go-Kart to Cadillac, my preference for this car would be 80-90% leaning toward Go-Kart] TIA for any advice Last edited by bimmaholic540; 07-25-2018 at 04:00 PM.. |
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07-25-2018, 06:11 PM | #37 | |
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07-26-2018, 09:42 AM | #38 | ||
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It's firm and taught. Just what you're looking for. You WILL feel low speed road imperfections more, but at highway speeds, Bilsteins are amazing. I went B6 because I was told by many that's what goes with stock std OR stock sport suspension. Some believe the B8 would be better suited to sport suspension springs. I'm in NYC and don't care about lowering: I care about durability and control. I think some upgraded sway bars might help you with roll control, but I'm not sure what to go with without compromising ride quality too much. There are a million options. Also look into Dinan or Monroe rear shock mounts. I have stock, but understand these are a good upgrade that reduce the humpty-bump in he read end. When I get time I'll get to those as well. Suggest staying away from Conti DWS06 tires. I went from Michelin AS3 to the Contis for comfort, but it's a HUGE compromise in control and steering response, for a VERY SLIGHT upgrade in comfort. I will be going back to Michelins when it's time. FWIW: I could use some new control arms probably... |
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07-26-2018, 10:16 AM | #39 | |||
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M3 control arms plus new tie rods will give you a whole different feel on control. Maybe look into Eibach front & rear sway bars, but I wouldn't do that unless you went with the b12 lowering kit just because the Eibach swaybars are tuned to the Eibach lowering springs found in the B12 kit. The car will have a sleeker look with the b12 kit, and it will handle considerably better. No question. In my opinion, the b12 kit is about as close to an M3 suspension a 335i will get. I ask about your mileage on the car, because you may want to consider dropping the rear subframe out of the car & redoing all the control arm bushings, differential bushings & subframe bushings. If you upgrade to M3 subframe & differential bushings, you will feel a difference to be sure.. |
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07-26-2018, 11:53 AM | #40 | ||||
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But that's with 40k hard NYC miles. No shimmies and no squeaks so far! I really don't want the car to ride harder or stiffer. It's a family car and needs to be compliant, so I'm staying away from things that would increase NVH...but that's for the input! |
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07-26-2018, 01:09 PM | #41 | |||||
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07-31-2018, 10:53 AM | #43 | |
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Just an observation. Personally, I'd be careful about this one. I'd only buy from a highly reputable vendor. |
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07-31-2018, 12:42 PM | #44 |
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I talked to Bilstein at Bimmerfest and the issue is that E9X is old and low priority, and then on top of that, European vendors have priority for stock over US vendors.
May I suggest the BMW Performance Suspension? It's great.
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