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      11-24-2014, 12:55 AM   #1
cu260r6
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Which slightly stiffer shocks with stock springs?

I'm a bit lost among all the shock choices. I drive a lot and use my non-sport suspension 128i as my daily driver, so I am wary of compromising the comfort for an extreme setup that includes lowered springs, but I'd like something slightly stiffer than stock. Which of the following choices would you suggest?

I've tried to rank these from stiffest to softest. Let me know if my ordering is off.

Koni Yellows - $600
Bilstein Heavy Duty - $800
Koni FSD - $740
KYB Excel-G - $370
Bilstein Touring Class - $500

Suggestions given the price disparity?
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      11-24-2014, 10:51 AM   #2
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Either Koni Yellows or the Bilstein HD will serve you fine. General rule is go Koni if you want to adjust and find the "perfect" setting for you, and Bilstein if you don't.

Both have lifetime warranties. Koni is slightly narrower and adjustable dampening. Bilstein are slightly thicker, lighter, and firmer.
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      11-24-2014, 10:59 AM   #3
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Bilstein HDs are going to feel stiffer than the Koni Yellows. FSDs will feel the softest.
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      11-24-2014, 11:15 AM   #4
andrey_gta
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add koni str.t ( a Yellow set to about middle) - using Koni webpage for the shock part numbers - skipping the H&R springs

If you are goign to continue using Stock springs in any trim( sport/non sport) FSB is for you because of its variable valving. Koni's annual spring sales are good opportunities even for the Str.t kit


Next consider installation cost ( for the front mostly) - It requires touching the springs to seat them on new shocks and so will not cost any more if you add different springs
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128i Sport 6MT converted to Euro 130i spec, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE
In-progress: e36M lip Wishlist: //M front arm, coils, n55 eng mnt, headers, LSD, e60 finn diff


"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is
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      11-24-2014, 05:49 PM   #5
cu260r6
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Thank, Andrey. I think I'm going to go with the SRT.T's as I found a new set for under $370 shipped. I don't need to ever take my car to the track (that's what my racebike is for ), so I hope they offer a decent enough dampening rate to get rid of the floating feeling, even with the stock springs.

Last edited by cu260r6; 11-24-2014 at 06:06 PM.
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      11-24-2014, 10:48 PM   #6
Dmak
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where do you get koni yellow for 600?
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      11-24-2014, 11:30 PM   #7
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FWIW you can get the Bilstein prokit with springs for $730. Sounds like you've already made up your mind though. I'm running Bilsteins on my 135is and e46 323. Had them on my old audi and e36 318is. Like someone else said if you aren't looking for adjustable struts/shocks then this is a solid solution. Firm but not too harsh.
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      11-24-2014, 11:38 PM   #8
andrey_gta
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Quote:
Originally Posted by Dmak View Post
where do you get koni yellow for 600?
Look at recent threads - last 5 pages or so - people have dug up like 5 websites searching by part number or kit number
But I imagine Koni Sales - spring/summer are the best chance

Quote:
Originally Posted by cu260r6 View Post
Thank, Andrey. I think I'm going to go with the SRT.T's as I found a new set for under $370 shipped. I don't need to ever take my car to the track (that's what my racebike is for ), so I hope they offer a decent enough dampening rate to get rid of the floating feeling, even with the stock springs.
Good stuff - they are quite nice. What site did you use - they are hard to find as shocks only
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128i Sport 6MT converted to Euro 130i spec, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE
In-progress: e36M lip Wishlist: //M front arm, coils, n55 eng mnt, headers, LSD, e60 finn diff


"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is

Last edited by andrey_gta; 11-24-2014 at 11:43 PM.
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      Yesterday, 03:37 AM   #9
cu260r6
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Here are the cheapest deals I found; $600 for the yellow sports and $370 for the orange SRT.Ts.

Koni Yellows: http://www.redline-motorworks.com/Ko...ort-shocks.htm

Koni SRT.T fronts (there's a different part number for the right one though): http://raceconsultingagency.com/i-19...FQyFaQodCysAfg

Koni SRT.T rears: http://sohiperformance.com/bmw-135is...FYVaMgodjRYAWA
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      Yesterday, 10:33 AM   #10
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I got Koni yellows shipped from Tire Rack for $540. Really good shock, not too stiff.

Keep in mind that they are single adjustable for rebound, so when someone says they have them set "full soft" or "full stuff" it isn't adjusting the compression.
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      Yesterday, 11:43 AM   #11
andrey_gta
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Quote:
Originally Posted by cu260r6 View Post
Here are the cheapest deals I found; $600 for the yellow sports and $370 for the orange SRT.Ts.
Oh forgot to say - e9x versions of the Koni Yellow or Str.t have the rear shock as a different part number. Curiously i think the Yellow kits for e8x come with the e9x version rears part number anyway. So e9x orange rears ordered instead of e8x rear Orange Str.t are a good idea
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128i Sport 6MT converted to Euro 130i spec, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE
In-progress: e36M lip Wishlist: //M front arm, coils, n55 eng mnt, headers, LSD, e60 finn diff


"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is

Last edited by andrey_gta; Yesterday at 12:21 PM.
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      Yesterday, 12:38 PM   #12
cu260r6
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Related question... do you suggest ordering all the strut/shock mounts and bearings as well or do these usually come with the shocks? Do they normally require replacement? I priced everything at bravarian autosports, and it came out of $140 shipped. Ouch.
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      Yesterday, 03:41 PM   #13
128Convertibleguy
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Smile

Quote:
Originally Posted by cu260r6 View Post
I'm a bit lost among all the shock choices. I drive a lot and use my non-sport suspension 128i as my daily driver, so I am wary of compromising the comfort for an extreme setup that includes lowered springs, but I'd like something slightly stiffer than stock. Which of the following choices would you suggest?

I've tried to rank these from stiffest to softest. Let me know if my ordering is off.

Koni Yellows - $600
Bilstein Heavy Duty - $800
Koni FSD - $740
KYB Excel-G - $370
Bilstein Touring Class - $500

Suggestions given the price disparity?
You may have made up your mind already, but I had exactly your motivation. Improve handling without a significant ride penalty.

I have the stock springs and FSDs (which basically require stock springs) and like the combination. I made my choice based on this Tirerack review (they sell both, so are less biased than would be otherwise true). The FSDs had slightly (insignificantly) better handling than the Yellows, with significantly better ride. They beat stock hollow.

http://www.tirerack.com/suspension/tests/koni_fsd.jsp

Tirerack set the Yellows to full soft. If they turned them up, the Yellows would no doubt outhandle the FSDs. But then the ride difference would be even more substantial.

On my newer car with 30K miles, I didn't bother to replace any of the other bits.

Note that another place you can get better handling, with little ride penalty, is the rear subframe bushings. And that non runflat tires have both better ride and better handling than run flats.
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