It's no secret that KW isn't much of a performance coilover. It is a mass produced product that sells due to such a low buy in price and an immense amount of marketing. Just look at the threads when someone asks what the best coilover system is, it is almost always KW and the reason being, "that's what I have on my car".
When you have never tried other systems it is easy to think that the KW system is great. BUT, take a ride a in a true linear rate car that has been set up properly with appropriate spring rates (or even the same spring rates) and you will see just how far off the best system you are. The reason for this being that KW uses progressive springs. This means that it takes an average over the springs compression. For example, say at 1 in of compression it is 200lbs, 2in compression = 250lbs and 3in compression= 300lbs. The spring rate would be 250lbs ((200+250+300)/3) This kind of springs set up is very unpredictable when it comes to handling and makes you car handle poorly because you don't have the quick reaction of the spring.
THE ONLY KW SYSTEM that is NOT progressive are the CLUBSPORTS.
Fortunately for those of you who already have KW coilover systems, you don't have to scrap you entire system to get a linear set up. We offer a KW conversion kit that allows you to use Swift linear coilover springs. We have offered this to the E9X community and they have been floored by how much they notice the difference and how :censor: they were for being suckered in on the KW product.
A fellow e46fanatics member explained it very well and this comparison is between two linear springs. KW springs would have been obliterated in this test.
When you have never tried other systems it is easy to think that the KW system is great. BUT, take a ride a in a true linear rate car that has been set up properly with appropriate spring rates (or even the same spring rates) and you will see just how far off the best system you are. The reason for this being that KW uses progressive springs. This means that it takes an average over the springs compression. For example, say at 1 in of compression it is 200lbs, 2in compression = 250lbs and 3in compression= 300lbs. The spring rate would be 250lbs ((200+250+300)/3) This kind of springs set up is very unpredictable when it comes to handling and makes you car handle poorly because you don't have the quick reaction of the spring.
THE ONLY KW SYSTEM that is NOT progressive are the CLUBSPORTS.
Fortunately for those of you who already have KW coilover systems, you don't have to scrap you entire system to get a linear set up. We offer a KW conversion kit that allows you to use Swift linear coilover springs. We have offered this to the E9X community and they have been floored by how much they notice the difference and how :censor: they were for being suckered in on the KW product.
A fellow e46fanatics member explained it very well and this comparison is between two linear springs. KW springs would have been obliterated in this test.