Originally Posted by RumbleFish

So, when the Z1 guys say..."Yes these are completely from our design and built a little heavier than the Kinetix. We have been testing development designs for over 2 years with no problems. Our test cars do see fairly aggressive abuse jumping curbing at quite a few tracks and Russell's street driving is also a bit over the top. I would say I have more faith in these arms than any other part on the market."

You don't believe them?