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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > NEED OPINIONS QUICK! used kwv2 or new bmw perf suspension



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      07-06-2009, 12:06 PM   #1
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NEED OPINIONS QUICK! used kwv2 or new bmw perf suspension

I need opinions asap as I need to move quick on this. I like the adjustability of the kwv2 but The bme perf is engineered by bmw and should be more trouble free. The drop seems good too. I only really want it lower in the front and maybe a bit in the back. It might be too stiff. the good thing about the kwv2 is I can make it as low or high as I want and adjust the dampening. Which do you think is the better setup for handling? the bmw perf suspension kit or a used perfect condition KWV2? thanks in advance for any input.
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      07-06-2009, 01:05 PM   #2
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Go new. Shocks are a wear and tear item and I would recommend going with a newer system even without the ability to adjust it. The more stuff there is for you to adjust, the longer you're going to spend endlessly tinkering with it rather than driving it. There's a market for that and racers who need that kind of adjustment. For most people it's unnecessary. If you've been on stock suspension this long I'm guessing you'll fit into the latter category but if I'm wrong then go with the KWs. Regardless, I'd still buy new, whether it's the KWs or BMWP suspension.
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      07-06-2009, 04:26 PM   #3
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Go new. Shocks are a wear and tear item and I would recommend going with a newer system even without the ability to adjust it. The more stuff there is for you to adjust, the longer you're going to spend endlessly tinkering with it rather than driving it. There's a market for that and racers who need that kind of adjustment. For most people it's unnecessary. If you've been on stock suspension this long I'm guessing you'll fit into the latter category but if I'm wrong then go with the KWs. Regardless, I'd still buy new, whether it's the KWs or BMWP suspension.
Thanks for the input. I can get a great deal on the kw. Im just so torn. I could get a brand new FK coilover. I do like the idea of being able to change it up when I want to. To me it seems the bmw perf. suspension seems like it will be perfectly suited for the e90 but Im worried I will regret it because of the lack of adjustability. I can also raise the car in the winter with coils. Maybe Ill try out the coilovers first and see how I like them. anyone with experience with the perf. suspension could chime in Id appreciate it. Out of everything what Im really looking for is crisp turn in and not so much body roll. I dont want it rediculously stiff though. It is my daily driver and I need to get these h&r sports out of the car. Its awful over bumps.
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      07-06-2009, 04:39 PM   #4
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Get dampening adjustable coils...you'll never regret them.
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      07-06-2009, 04:42 PM   #5
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I had springs on my last 335... went with coilovers on the new one and never plan on looking back My last car had just springs, and oem shocks so I cant really compare that to the bmw perf. set-up, but going from my old set-up to the fk coilovers i have now, I feel/have been able to throw the car around corners ALOT faster than before with more control of the car as well..
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      07-06-2009, 07:44 PM   #6
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how is the ride with the FK's? Are they easy to adjust?
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      07-06-2009, 08:10 PM   #7
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Ride is great man. I have the Koni's set in the middle between soft/hard. Adjustment is easy. I measured the threads before I put them on so I just had to do a few minimal adjustments afterwards.
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      07-06-2009, 08:13 PM   #8
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I am doing my research now on this same topic (suspension) and am leaning towards the bmw perf setup now, but have the coils in the back of my head still. Not sure I need all the adjusability though. How much clearance can you get from fully dropped to fully raised on most coils? I think the only benefit I would find is being able to raise the car slightly in the winter.
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      07-06-2009, 08:14 PM   #9
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Quote:
Originally Posted by 1clean335i View Post
Ride is great man. I have the Koni's set in the middle between soft/hard. Adjustment is easy. I measured the threads before I put them on so I just had to do a few minimal adjustments afterwards.
how did you know where to set them at first. Is there a default height on the coilover or how do you measure. Put the thread at the middle or something . thanks. Im about ready to order these. Im passing up a great deal on used kw's for these. I hope it all works out.
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      07-06-2009, 09:28 PM   #10
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Quote:
Originally Posted by fotios335i View Post
how did you know where to set them at first. Is there a default height on the coilover or how do you measure. Put the thread at the middle or something . thanks. Im about ready to order these. Im passing up a great deal on used kw's for these. I hope it all works out.
You'll be happy with the FK's! Good choice.
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      07-06-2009, 09:31 PM   #11
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Who are you guys getting your FKs from?
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      07-06-2009, 10:28 PM   #12
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Quote:
Originally Posted by fotios335i View Post
I need opinions asap as I need to move quick on this. I like the adjustability of the kwv2 but The bme perf is engineered by bmw and should be more trouble free. The drop seems good too. I only really want it lower in the front and maybe a bit in the back. It might be too stiff. the good thing about the kwv2 is I can make it as low or high as I want and adjust the dampening. Which do you think is the better setup for handling? the bmw perf suspension kit or a used perfect condition KWV2? thanks in advance for any input.
too many post on kw's making noises,go with bmw perf. suspension.
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      07-06-2009, 10:35 PM   #13
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KWs are great. Just make sure you get NEW housings with the V2's if you plan on getting new sway bars.
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      07-06-2009, 11:11 PM   #14
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How many miles are on the KWs? I would personally go KWs over a traditional spring/shock combo.
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      07-06-2009, 11:27 PM   #15
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Who are you guys getting your FKs from?
supreme power.
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      07-06-2009, 11:30 PM   #16
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How many miles are on the KWs? I would personally go KWs over a traditional spring/shock combo.
17k . a bit too much unfortunately.
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      07-07-2009, 06:47 AM   #17
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Quote:
Originally Posted by fotios335i View Post
how did you know where to set them at first. Is there a default height on the coilover or how do you measure. Put the thread at the middle or something . thanks. Im about ready to order these. Im passing up a great deal on used kw's for these. I hope it all works out.
I was looking through the FK coilover thread in the Sponsored Classified section posted by ECS Tuning and another member posted pictures of where his threads were. So I just based my setting off that and went lower
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      07-07-2009, 01:25 PM   #18
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Quote:
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17k . a bit too much unfortunately.
You may be able to get the dampers rebuilt. But unless you're getting them for really cheap it won't be worth it to you. I'm not sure what program KW has for rebuilding dampers though. I know Koni and Bilstein both have pretty standard and accessible programs.
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      07-07-2009, 03:27 PM   #19
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coilovers
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      07-07-2009, 03:37 PM   #20
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Quote:
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You may be able to get the dampers rebuilt. But unless you're getting them for really cheap it won't be worth it to you. I'm not sure what program KW has for rebuilding dampers though. I know Koni and Bilstein both have pretty standard and accessible programs.
I'm not sure if you can have them rebuilt under the lifetime warranty as a second owner. But I think it's about $75-100 a shock.
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      07-08-2009, 11:30 AM   #21
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Quote:
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You may be able to get the dampers rebuilt. But unless you're getting them for really cheap it won't be worth it to you. I'm not sure what program KW has for rebuilding dampers though. I know Koni and Bilstein both have pretty standard and accessible programs.
Thats getting too involved and not worth it to me. Im sure the FK coilovers are comparable enough.
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      07-08-2009, 12:05 PM   #22
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Yeah I would think so. Typically it's not worth buying shocks to revalve unless they're some serious hardware, or so cheap they're basically throwaways.
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