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E85 / E86 Z4 (2003-2008)
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  #1  
Old 01-27-2016, 02:17 PM
bamarider1 bamarider1 is offline
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looking for new shocks & struts

I have an 04 with the sport suspension with orignial shocks & sruts (14k miles) and am looking for replacements. Car is used mainly for pleasure riding, so looking for decent ride quality. What would you guys recommend?
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  #2  
Old 01-27-2016, 02:45 PM
Twixboy Twixboy is offline
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Why are you looking for replacements? Is something wrong w/the OEM after just 14k miles? I'd stick with what you have since your car is used mainly for touring.
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Old 01-27-2016, 08:53 PM
bamarider1 bamarider1 is offline
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Originally Posted by Twixboy View Post
Why are you looking for replacements? Is something wrong w/the OEM after just 14k miles? I'd stick with what you have since your car is used mainly for touring.
Sorry, that should have read 114k miles. With that many miles & 12 years of age figure its time to replace them.
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Old 01-27-2016, 09:47 PM
chatcher chatcher is online now
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Koni or Bilstein either will do the trick.
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  #5  
Old 01-28-2016, 05:46 AM
kalali kalali is online now
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Koni Sport yellow with stock springs. At 114K your shocks/struts are completely shot. You'll see when you take them off.
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Old 01-28-2016, 07:39 AM
Twixboy Twixboy is offline
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Originally Posted by bamarider1 View Post
Sorry, that should have read 114k miles. With that many miles & 12 years of age figure its time to replace them.
Ah, that makes more sense. I replaced mine at 58k miles so I can't imagine how bad yours are at 114k, LOL. I replaced mine with Koni yellows which are adjustable. The Bilsteins mentioned above come in a few different models - the B4 is the OEM equivalent, the B6 uses a monotube design and is higher quality than the B4, and the B8 is for the driving enthusiast and suitable for lowering springs.
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Old 01-28-2016, 11:16 AM
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dc_wright dc_wright is offline
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Originally Posted by Twixboy View Post
Ah, that makes more sense. I replaced mine at 58k miles so I can't imagine how bad yours are at 114k, LOL. I replaced mine with Koni yellows which are adjustable. The Bilsteins mentioned above come in a few different models - the B4 is the OEM equivalent, the B6 uses a monotube design and is higher quality than the B4, and the B8 is for the driving enthusiast and suitable for lowering springs.
The B6 or B8 are a bit closer to the struts/shocks used in the sport suspension. The B8 might be just a bit firmer than the sport suspension OEM shock, but if I was flipping a coin that's what I'd go with between the two if I was going with a non-adjustable Bilstein.
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Old 01-29-2016, 06:34 AM
Twixboy Twixboy is offline
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The B6 or B8 are a bit closer to the struts/shocks used in the sport suspension. The B8 might be just a bit firmer than the sport suspension OEM shock, but if I was flipping a coin that's what I'd go with between the two if I was going with a non-adjustable Bilstein.
Good call on the sport suspension. I didn't realize the shocks/struts were different on the sport suspension - I only had mine for a month before upgrading to aftermarket. I thought it just used shorter springs.

Last edited by Twixboy; 01-29-2016 at 06:35 AM.
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  #9  
Old 01-29-2016, 08:19 AM
bamarider1 bamarider1 is offline
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Quote:
Originally Posted by dc_wright View Post
The B6 or B8 are a bit closer to the struts/shocks used in the sport suspension. The B8 might be just a bit firmer than the sport suspension OEM shock, but if I was flipping a coin that's what I'd go with between the two if I was going with a non-adjustable Bilstein.
Yea the B8s are for lowered suspensions and from what i understand the sport suspension is lower than the standard. Some of the shocks that I've looked at state that they're not for sport suspension, guess standerd shocks would bottom out on the sport suspension.
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Old 01-29-2016, 09:03 AM
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dc_wright dc_wright is offline
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Originally Posted by bamarider1 View Post
Yea the B8s are for lowered suspensions and from what i understand the sport suspension is lower than the standard. Some of the shocks that I've looked at state that they're not for sport suspension, guess standerd shocks would bottom out on the sport suspension.
Probably not much risk of bottoming because the sport springs only lower the ride height about 15mm if I remember correctly. The bigger difference is the struts/shocks on the sport suspension are a bit firmer and have a different damping curve than the non-sport suspension units.
If you've got the $$ available I'd go with the Koni Sport adjustables so that you've got the ability to dial in the ride you like. I have them on my car ('06 with sport suspension) and I'm happy with them. At the softest setting they're just a bit firmer than the OEM units but not harsh, and you can dial them up from there to really firm if you so choose.
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  #11  
Old 01-29-2016, 04:23 PM
bamarider1 bamarider1 is offline
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The front struts in bilstine B8 & koni sport are the same price, but there's a $100 per shock difference for the rears between the two. Don't understand that. I talked with someone @ turnermotorsports and he recommended the koni's.
Any other vendors y'all would recommend?
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