Sway Bar and K-Mac Question

[Bayerische E53]

Hi guys,

Just a quick question - is Eibach the only company that makes sway bars for our cars or is there another company (I can't seem to find another one).

Also, those of you who have experience with the K-Mac rear camber/toe kit, what are your opinions of it and how low (on coil-overs) can you go before the kit can not dial out anymore camber than stock (i.e. at what ride height will the K-Macs, in full dialed out mode, reach/exceed the OEM camber and toe)? Honestly, my preference would be to get the rear to no more than -2.0 degrees of negative camber.

I must say that I've heard mixed reviews of the K-Mac stuff - would I be better off having a custom concentric bolt machined? I've even considered designing and building a fully adjustable threaded upper wishbone (a-le E46 adjustable control arm). Thoughts?

One more thing. SPC (the same company that makes the steel adjustable rear control arms for the E46) also make a concentric bolt setup of the E60. K-Mac's E60 kit is the same one they sell for the e53 - I wonder if I could use the SPC E60 kit if it gives more camber than the K-Mac kit - the only difference is that the SPC kit has rubber instead of poly bushings (as in the K-Mac kit) and it costs about half the price of the K-Mac kit. I guess that prompts a new question; for those of you using the K-Mac camber kit, is the poly bushing from the K-Mac kit noisy as a bastard? Hrm...

Thanks very much!