I think Paul forgot the link:
http://www.xfactoryrc.com/rc/Tech/In...ls.php#X6SqrEC
This is the manual for the K 021 Entire Car. He is suggesting you look at the Race Prep section and the Tuning Guide. You can download them or print them out, as well as any other part of the manual you want.
We think the Prep section and Tuning Guide are so good we are considering offering them for sale as a stand-alone printed book. Any comments on that? Would you pay $4.99 for one?