Ok so i lost the upper screw for my left steering knuckle, and the bottom one is stripped. So im going to replace the whole steering knuckle. I was going to just replace them with the factory ones, for $24 and change but I know there are Hop Up ones, are they that much better than the stock ones??? What are the advantages???? Im running a CEN Matrix.

I would go with the hop-up ones, i broke both my steering knuckles on my hyper and bought the same ones again and one of them broke, Ive broken three of the stock type ones so ive ordered the cnc ones and hopefully they'll work better. But yea its annoyingly more expensive but worth it.