We do not provide data for individual components as we develop our components to work together in kits to create the most efficient aerodynamic package for the given build volume. However, we do offer an informative packet regarding the data for this entire kit on the website.
It is not advised. The splitter will see a significant amount of downforce at speeds above 80 mph and without the support rods, the rivet nuts could easily be pulled away from the bumper.
Unfortunately, the S15 chassis is just a little too old for us to look into production parts. We certainly appreciate the interest in our company though.
We also have the full manual on our website! As always you can e-mail sales@verus-engineering or give us a call at (317) 734-3854 if you need additional help.