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Old 07-14-2010, 05:21 PM   #1
HP Autowerks
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KW Coilover Spring Conversion Kits

What we are offering to the e46 community is a way to convert the progressive and poorly designed KW springs to a linear set up. In order to do this you need to remove the KW springs and replace them with a linear spring.

KW uses a 61MM spring perch so in order to make the change you need to have 1MM machined off your bottom seat (threaded collar). We can provide a set of brand new KW bottom seats for $129.

We have tried many different linear springs and we have found Swift Springs to be the best.

Here is a thread that completely compares springs and explains why progressive springs (KW) are bad performers.


The basic front only kit consists of a custom upper spring perch, Swift springs, and Swift thrust sheets. Retail price is $299.

The complete kit will come with rear Swift springs, Swift thrust sheets, and a pair of rear height adjusters. Retail price is $672.

For those who wish not have to mess with machine work on the front lower spring adjusters, we also have a kit with machined adjusters included at $792.

The bottom photo is he front kit mounted on KW struts, one with the stock upper mount, and the other with Vorshlag camber plate.

***Slight machine shop work is required for the front lower spring perch, which can easily be done at a local mahine shop***

A wide variety of spring rates are available to choose from or we can make a recommendation for you.

Camber plates(Vorshlag) is optional but recommended if you are attending HPDE or track days. When adding camber plates to either kit, you are looking at an additional $439.

Fronts:


Rears:


Front Completely Installed:

Last edited by HP Autowerks; 07-20-2010 at 12:38 PM.
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Old 07-20-2010, 12:25 AM   #2
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I think you need to re-word everything, alot of people don't know what this is.
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Old 07-22-2010, 12:05 PM   #3
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Done. Thanks for the heads up
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Old 08-09-2010, 10:24 PM   #4
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Old 08-31-2010, 02:14 AM   #5
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Old 09-05-2010, 04:15 AM   #6
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Old 09-13-2010, 03:15 AM   #7
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Ditch your progressive springs and step up to the real deal.
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Old 09-30-2010, 05:33 AM   #8
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Old 10-26-2010, 01:12 AM   #9
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Old 11-21-2010, 07:52 PM   #10
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