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10-22-2009, 04:47 PM | #1 |
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Bilstein Heavy Duty HD Shocks Z4M
Hi guys,
I have Eibach springs with factory shocks. I really don't like how harsh the BMW shocks ride. These Bilstein Heavy Duty seem to ride better without sacrificing performance. Coilovers are too expensive right now plus I already have springs so I'll just need to add some shocks. Does anybody have experience with these shock??? Thanks! |
10-23-2009, 08:50 AM | #2 | |
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10-23-2009, 11:08 AM | #3 |
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from what i know about bilstein shocks from previous cars, the heavy duties are made to mate with stock springs. if you were to use lowering springs (such as the eibachs), the bilstein sports are recommended as they have a shorter shaft and it wouldn't bottom out. valving on both HD and sport are the same. just the shaft length is different to compensate for lowering springs.
the harsh ride youre experiencing with the stock shocks are probably because the shocks are shot and are bottoming out. similar to what would happen with HDs as well |
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10-23-2009, 11:49 AM | #4 | |
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03-03-2010, 10:26 AM | #5 |
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i researched these too. Bilstein lists them as type "b6" and "sport" on their own website, but the part numbers are for heavy duty shocks with standard ride height, NOT 'sport' shocks with lowered ride height. Confirmed same with Tirerack phone support. Others may know differently?
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03-03-2010, 02:45 PM | #6 |
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I gave up on these as I reached Bilstein and they confirmed it's for factory springs. Also they don't ride smoothly according to some reviews.
I end up buying Coilovers to resolve my situation which for Z4M owners seems like the only option. |
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03-11-2010, 11:59 AM | #8 |
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