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BMW 3-Series (E90 E92) Forum > E90/E92/E93 Marketplace (For Sale / Trade / Wanted) > SPONSORS Classifieds/Groupbuys/Specials Area > Suspension & Brakes & Handling Upgrades > Koni Coilover Coversion Kit for 128i 135i 325i 328i 330i 335i



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      06-15-2010, 05:25 PM   #1
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Koni Coilover Coversion Kit for 128i 135i 325i 328i 330i 335i

For those already running Koni Sport Yellows with OEM, Eibach, H&R or other springs, but is looking for a bit more handling performance or simply looking for the option to adjust ride height, HP Autowerks, Inc. has what you need!

This kit converts your Koni Sport Yellows to a true coilover system with linear rate high quality Swift springs. A fully assembled kit will look something like this:

http://www.e90post.com/forums/showpo...96&postcount=1

The kit consists of:

Front threaded sleeves
Spanner wrenches
Front Swift springs(various rates are available)
Front spring upper hats(camber plates are optional at $439)
Rear threaded height adjusters
Rear Swift springs(various rates are available)
Swift thrust sheets/bearings

Price is $959 + freight.
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      06-15-2010, 05:38 PM   #2
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can it be adjusted front damper with this kit?
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      06-15-2010, 06:00 PM   #3
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Quote:
Originally Posted by hipertech View Post
can it be adjusted front damper with this kit?
I am not following your question. Please PM.
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      06-16-2010, 12:42 AM   #4
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wow.. wouldn't it be cheaper to just go with a K&W coilover set? konis are at the $600-700 price range already.
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      06-16-2010, 02:10 AM   #5
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Quote:
Originally Posted by cbbplanet View Post
wow.. wouldn't it be cheaper to just go with a K&W coilover set? konis are at the $600-700 price range already.
KW does not use a linear rate constant ID coilover type spring so there is no comparison.

KW V2(matches rebound adjustments on the Koni Sport Yellows) retails at $1895, so let's say you can get them at ~$1500, you will have to spend another $672 for the conversion kit(not counting machine work). That makes the KW V2 true coilover kit at ~$2172. The Koni SA coilover kit is only $1537 by comaprison with your choice of spring rates. Try ordering the KW V2 with different spring rates, NOT possible.

If you are already running KW V2 or 3 and is interested in the KW coilover conversion kit, have a look at the followring thread for more info:

http://www.e90post.com/forums/showthread.php?t=329544

For those already have Koni Sport Yellows on their cars, this is an excellent add on and conversion.
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      06-16-2010, 07:17 AM   #6
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What about jic/cross?
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      07-21-2010, 01:25 PM   #7
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Quote:
Originally Posted by onefastman View Post
What about jic/cross?
Send me some photos of your JIC/Cross system and I'll see what I can do.

I may need more info, but photos will be a good start.

Send your photos to: Harold@hpautowerks.com
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      06-01-2011, 02:43 AM   #8
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These coilover sleeve kits are good in stock and ready to ship!
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      11-02-2011, 04:28 AM   #9
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Quote:
Originally Posted by HP Autowerks View Post
Excellent upgrade if you already have Koni's on the car and looking for more performance.
Doesn't seem a good value at all. The springs retail for like $400, the thrust sheets for like $50, and we are supposed to pay $500 for 4 CNC machnined nuts ? IMO, the real value of the kit is not more than $650.
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      11-14-2011, 09:07 PM   #10
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Quote:
Originally Posted by tscdennab View Post
Doesn't seem a good value at all. The springs retail for like $400, the thrust sheets for like $50, and we are supposed to pay $500 for 4 CNC machnined nuts ? IMO, the real value of the kit is not more than $650.
The sleeve over, top hats and rear height adjusters all add to the total cost of the kit. Not to mention the two spanner wrenches.
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      07-17-2012, 12:11 AM   #11
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coilover conversion kit

One of the best true coilover conversion kits for your Koni Sport Yellows.
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      02-13-2013, 12:25 PM   #12
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Coilover Kit

Already have Koni Yellows on the car- would go for these in a second but the price really seems disproportionate to the item. Seems like I'd be paying $500.00 for a pair of CNC machined sleeves. Understand R&D and production costs and all of that but Wow!
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      02-13-2013, 04:14 PM   #13
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Quote:
Originally Posted by black 335xi View Post
Already have Koni Yellows on the car- would go for these in a second but the price really seems disproportionate to the item. Seems like I'd be paying $500.00 for a pair of CNC machined sleeves. Understand R&D and production costs and all of that but Wow!

Swift springs are $99 each, rear height adjusters are $200, sleeve-overs are $195, $78 for upper perches, $50 for Swift thrust sheets....not even counting spanner wrenches.
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      05-15-2013, 01:00 AM   #14
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BUmp!
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      05-23-2014, 02:57 PM   #15
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Is this compatible with the XI? and can the front be purchased separate? I already have the rear setup.
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      05-28-2014, 01:09 PM   #16
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Quote:
Originally Posted by Stone_henge View Post
Is this compatible with the XI? and can the front be purchased separate? I already have the rear setup.
Yes, but since you don't have a short housing front strut you will have a slightly reduced bump travel.
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      06-01-2014, 09:29 PM   #17
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So with this setup, i keep my koni yellows, but swap out my eibach pro-kit springs for these swift springs and gain the ability to adjust ride height as well as better handling?
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      06-02-2014, 03:35 PM   #18
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Quote:
Originally Posted by NocturnalEVO View Post
So with this setup, i keep my koni yellows, but swap out my eibach pro-kit springs for these swift springs and gain the ability to adjust ride height as well as better handling?
Yes, that is correct.
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      06-04-2014, 12:02 AM   #19
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Quote:
Originally Posted by HP Autosport View Post
Yes, that is correct.
How are the front sleeves installed. Looks like the perches on the koni need to be removed. Is this a DIY affair?
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      06-04-2014, 12:20 AM   #20
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Quote:
Originally Posted by Hierlevelz View Post
How are the front sleeves installed. Looks like the perches on the koni need to be removed. Is this a DIY affair?
Yes, it's DIY. The Koni perches are only a friction fit and so are ours. You can take a rubber mallet and give the Koni perches a light tap.
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