Hey guys I'm stuck in between ct race works a arms upper and lower or S3 power sports upper and lower? I'm interested in the Chromoly. Not so much the box a arm? If you currently have the S3 power sports Chromoly arms I am really intrested in your thoughts? For the price the S3 power sports can't beat it $1000 for upper and lower plus they're ready to ship? That is why I'm leaning towards the S3. Your thoughts and comments on this matter would be greatly appreciated thank you. Also if you feel that Box a arms are substantially better I am open for suggestions. Also are the upper arms really necessary to replace? Fyi I do drive my machine hard.