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BMW 3-Series (E90 E92) Forum
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Koni Special Active Dampers Anyone?
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04-18-2019, 01:53 PM | #23 | |
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If you make modifications to your car (IE: replace hard parts with non-factory or OEM-equivalent parts) you must declare them with your insurer or, as Tambohamilton already stated, the insurer may not cover you in the event of a loss. Just the way it is over there. |
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04-18-2019, 01:55 PM | #24 | |
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04-18-2019, 02:19 PM | #25 | |
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Absolutely nuts. |
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04-18-2019, 03:13 PM | #26 | |
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To give some perspective, I went to get Michelin PS4 fitted to the rear of my car last year. Thought nothing of it, other than getting some decent non-RFT tyres to replace the ones which were worn out. Turned up at the garage and they refused to fit them until I had cleared it with my insurance company that it was OK to run a mix of RFT and not. That wasn't an independent garage, and the fellow told me it was company policy. I'd love to run water/meth injection, but........ |
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04-18-2019, 05:10 PM | #27 | |
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The nice thing about this is I can drive around a highly modified car and pay the same insurance premium as if it were stock. The bad thing is if I have $25,000 in upgrades on my car and it gets totaled, that $25,000 is essentially lost because my payout would only be what the stock car is worth. |
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04-18-2019, 05:34 PM | #28 | |
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That would be totally awesome to only pay a fixed amount for the car - wouldn't bother me if the upgrades weren't insured! Just pull the parts off the wrecked car, as said! You lot have got it GOOD! ![]() Anyhow, that's enough OT insurance chat I guess... Still super happy with the Special Actives. Can feel their limitations (mid corner bumps on the outside wheel, for example), but overall they do a great job of being 'best of both worlds'. Stoked! |
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04-19-2019, 07:28 AM | #29 | |
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04-19-2019, 08:36 AM | #30 | |
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![]() It's not that it wanders off line or anything, it's just that the bump feels more harsh...which is a fact of life with this damping mechanism. ![]() |
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04-23-2019, 08:53 AM | #31 |
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I haven't installed my koni kit yet but you'd be surprised at how crappy some shops can be. After installing my bilsteins my car would move so much during mid corner bumps and would hate one wheel bumps and undulations, the car was twitchy and I hated it. Turned out the alignment guy decided to put toe out. Once I got it properly realigned it drove like a charm. I'm just hoping I can make the koni kit perform just as good. Maybe the dampening rate being matched to the springs will help?
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04-23-2019, 08:36 PM | #32 |
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Don't be put off by my comments on the limitations - it's not a criticism, just an observation. The harshness
at its worst (in occasional, weird scenarios) is no worse than the standard dampers were all the time. I did use a mechanic I trust for the alignment, and got all 4 wheels done. Fronts were not bad where I had set them, though they still tweaked it a little. But the rears were terrible; 2.5deg of neg camber, and 1.5deg toe out! By the way, folks who track their e9x's actually agree that about 0.15deg of toe out is constructive... I can't say I really understand why, but folk who would know better also agree! |
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04-28-2019, 04:48 AM | #33 |
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Reminds of why we declared our Independence!
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04-28-2019, 03:32 PM | #34 | |
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04-29-2019, 09:07 AM | #35 |
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Not yet. DIY a lot of my stuff. I decided to get stiffer but progressive and shorter speedthane bump stops. It seems as if the bump stops weren't enough for the FSD'S so I'm playing it safe with the active. I'm putting them on all 4 corners. So half an inch more travel in the rear and over half an inch in the front. It seems as if the original FSD's just needed proper bumpstops. I'm waiting for all the parts to come in.https://www.e90post.com/forums/showt...mp+stop&page=3
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Former E90 325i:
Koni special active red, eibach pro-kit springs, Remus exhaust, stage 3 intake manifold,Stage 2 AA tune, BMW Short shift kit. Silicon intake pipe. M3 control arms front, M3 rear. ECS trailing arm with whiteline bushings. Purple powerflex subframe bushings. Yellow power flex upper shock mounts. Single mass flywheel OE weight. Last edited by gunnerxq; 04-29-2019 at 09:20 AM.. |
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05-07-2019, 06:25 PM | #36 |
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The kit is amazing. It soaks up bumps well and the shocks are perfectly valved to the springs. Some dips or sunken manhole covers I can't even feel anymore. The body control is perfect, no excess bouncing or "jiggling" from improperly matched shocks. The car is still sporty but the edge was taken off of road imperfections. It's by no means a mercedes but a lot more comfortable now. My girl rated my ride as a 4 before now as an 8 out of 10. The m3 front and back with subframe bushings probably make my car stiffer than normal.
Also I don't seem to have the midcorner problems as Tambohamilton. I'll probably need more driving to be 100% sure |
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05-08-2019, 07:10 AM | #37 | |
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05-08-2019, 09:14 AM | #38 | |
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Also I think a big thing that these type of shocks need are upgraded bump stops. I think I already reached them but I haven't noticed because there hasn't been any loud crashes or bangs on big compressions. Koni should really put upgraded bumpstops with their kits.
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Former E90 325i:
Koni special active red, eibach pro-kit springs, Remus exhaust, stage 3 intake manifold,Stage 2 AA tune, BMW Short shift kit. Silicon intake pipe. M3 control arms front, M3 rear. ECS trailing arm with whiteline bushings. Purple powerflex subframe bushings. Yellow power flex upper shock mounts. Single mass flywheel OE weight. |
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05-08-2019, 10:23 AM | #39 | |
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05-08-2019, 11:49 AM | #40 | |
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I didn't match these dampers with eibach pro-kit. They were matched by Koni, they came as a kit with the eibach springs and were valved to match the springs. And from what I can tell they are perfectly matched. I used the Blue speedthane bump stops that were mentioned in this thread. https://www.e90post.com/forums/showt...mp+stop&page=3 Here is the speedthane on the left vs. A rear sport bump stop. I bought new dust boots in the rear to put them in. The speedthane went on all 4 corners.
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Former E90 325i:
Koni special active red, eibach pro-kit springs, Remus exhaust, stage 3 intake manifold,Stage 2 AA tune, BMW Short shift kit. Silicon intake pipe. M3 control arms front, M3 rear. ECS trailing arm with whiteline bushings. Purple powerflex subframe bushings. Yellow power flex upper shock mounts. Single mass flywheel OE weight. Last edited by gunnerxq; 05-08-2019 at 12:01 PM.. |
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05-08-2019, 01:46 PM | #41 |
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You put the 58mm 40G (blue) stops on all four corners?
Hmmm, I might have to give these a shot. My Koni yellow easily run out of suspension travel right now, it's terrible over bumps and manhole covers. The front crashes so hard. I think my rears may be blown as well since they've all been on the car for 45k miles now and the back end skips laterally over bumps really badly to the point it's kind of scary on the highway... Tempted to buy FSDs as I would really like some comfort back.
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05-08-2019, 10:15 PM | #42 | |
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05-09-2019, 08:33 AM | #43 |
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Right, I meant SA not FSD.
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05-09-2019, 09:34 AM | #44 | |
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The front bump stop I had to make the hole bigger near the bottom half because it was to tight for some reason it's a smaller diameter. Took like 10 min using a serrated knife from a multi tool and added grease before putting it on. The back fit with ease, it holds well and stays where you want it to. I think a lot of different setups on these cars would benefit from proper bumpstops. Forget about the front bilsteins though the shaft is way too big. |
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