Koni Coilover Coversion Kit for 128i 135i 325i 328i 330i 335i

HP Autosport · 06-15-2010, 06:25 PM

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

Order here:

http://www.hpashop.com/Koni-Coilover...on-e82-e9x.htm

gt3fever · 06-15-2010, 06:38 PM

can it be adjusted front damper with this kit?

HP Autosport · 06-15-2010, 07:00 PM

Quote:

Originally Posted by hipertech

can it be adjusted front damper with this kit?

I am not following your question. Please PM.

Robben@ltbmw · 06-16-2010, 01:42 AM

wow.. wouldn't it be cheaper to just go with a K&W coilover set? konis are at the $600-700 price range already.

HP Autosport · 06-16-2010, 03:10 AM

Quote:

Originally Posted by cbbplanet

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.

onefastman · 06-16-2010, 08:17 AM

What about jic/cross?

HP Autosport · 07-21-2010, 02:25 PM

Quote:

Originally Posted by onefastman

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

HP Autosport · 06-01-2011, 03:43 AM

These coilover sleeve kits are good in stock and ready to ship!

tscdennab · 11-02-2011, 05:28 AM

Quote:

Originally Posted by HP Autowerks

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.

HP Autosport · 11-14-2011, 09:07 PM

Quote:

Originally Posted by tscdennab

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.

HP Autosport · 07-17-2012, 01:11 AM

One of the best true coilover conversion kits for your Koni Sport Yellows.

black 335xi · 02-13-2013, 12:25 PM

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!

HP Autosport · 02-13-2013, 04:14 PM

Quote:

Originally Posted by black 335xi

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.

HP Autosport · 05-15-2013, 02:00 AM

BUmp!

Stone_henge · 05-23-2014, 03:57 PM

Is this compatible with the XI? and can the front be purchased separate? I already have the rear setup.

HP Autosport · 05-28-2014, 02:09 PM

Quote:

Originally Posted by Stone_henge

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.

NocturnalEVO · 06-01-2014, 10:29 PM

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?

HP Autosport · 06-02-2014, 04:35 PM

Quote:

Originally Posted by NocturnalEVO

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.

Hierlevelz · 06-04-2014, 01:02 AM

Quote:

Originally Posted by HP Autosport

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?

HP Autosport · 06-04-2014, 01:20 AM

Quote:

Originally Posted by Hierlevelz

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.

HP Autosport · 03-11-2015, 01:30 PM

bump

HP Autosport · 11-16-2015, 08:54 PM

bump

06-15-2010, 06:25 PM	#1
HP Autosport Supreme Allied Commander 4091 Rep 55,822 Posts Drives: F80 M3 Join Date: Mar 2007 Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com iTrader: (36)	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 Order here: http://www.hpashop.com/Koni-Coilover...on-e82-e9x.htm Attached Images Last edited by HP Autosport; 01-03-2017 at 05:18 PM..
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06-15-2010, 06:38 PM	#2
gt3fever Major 78 Rep 1,232 Posts Drives: 992 GT3, G87 Join Date: Oct 2008 Location: Socal, Taiwan iTrader: (15)	can it be adjusted front damper with this kit?
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06-16-2010, 01:42 AM	#4
Robben@ltbmw 120 Rep 2,215 Posts Drives: E90 Space Grey Join Date: Dec 2009 Location: ROSEMEAD, CA iTrader: (4) Garage List 2007 328i [0.00]	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, 08:17 AM	#6
onefastman Major General 162 Rep 5,689 Posts Drives: 2009 135i 2011 e92m dct Join Date: Sep 2009 Location: Earth iTrader: (15)	What about jic/cross? __________________ Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(1addicts.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
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06-01-2011, 03:43 AM	#8
HP Autosport Supreme Allied Commander 4091 Rep 55,822 Posts Drives: F80 M3 Join Date: Mar 2007 Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com iTrader: (36)	These coilover sleeve kits are good in stock and ready to ship!
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07-17-2012, 01:11 AM	#11
HP Autosport Supreme Allied Commander 4091 Rep 55,822 Posts Drives: F80 M3 Join Date: Mar 2007 Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com iTrader: (36)	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
black 335xi Private 6 Rep 89 Posts Drives: 2010 335 i Join Date: Aug 2011 Location: US iTrader: (1)	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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05-15-2013, 02:00 AM	#14
HP Autosport Supreme Allied Commander 4091 Rep 55,822 Posts Drives: F80 M3 Join Date: Mar 2007 Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com iTrader: (36)	BUmp!
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05-23-2014, 03:57 PM	#15
Stone_henge New Member 2 Rep 26 Posts Drives: 2008 BMW 335xi Join Date: Apr 2014 Location: Calgary, AB iTrader: (0) Garage List 2008 BMW E90 335xi [0.00]	Is this compatible with the XI? and can the front be purchased separate? I already have the rear setup.
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06-01-2014, 10:29 PM	#17
NocturnalEVO Stock 171 Rep 1,275 Posts Drives: 2009 E92 335i Join Date: Dec 2006 Location: Long Island, NY iTrader: (8)	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? __________________ '09 E92 335i (6MT) Jet Black/Coral Red '11 E90 328i XDrive (6AT) Jet Black/Saddle Brown (wife's car) '06 Evolution IX MR (sold) '06 R6 Anniversary Edition (sold)
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03-11-2015, 01:30 PM	#21
HP Autosport Supreme Allied Commander 4091 Rep 55,822 Posts Drives: F80 M3 Join Date: Mar 2007 Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com iTrader: (36)	bump
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11-16-2015, 08:54 PM	#22
HP Autosport Supreme Allied Commander 4091 Rep 55,822 Posts Drives: F80 M3 Join Date: Mar 2007 Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com iTrader: (36)	bump
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