Then you better make sure it is in fact good. And it better in fact have real benefits not imagined ones.
Sellers should demonstrate what qualifies their product. Like:
This is the bumpsteer measurements of a stock K-member, here is ours.
This is the ackermann measurements of a stock K-member, here is ours.
This is the camber change measurements of a stock K-member, here is ours.
... so on and so on...
That's not revealing any of the design of the part, just it's performance. Another one would be to put a stock K-member in a hydraulic press with a pressure gauge and record the force it took when the K-member just starts to deflect. You could do that by running a tight string across it and watch for it to bend. Then do that same test with the new tubular K-member.
Just basic selling... Presentation without demonstration is merely conversation.
