Even if the rules would allow it, you're only asking for trouble by mounting your seat, if you could, to the stock mounts. A fellow by the name of Jay Wright was involved in a fairly simple accident that turn violent and almost fatal several years ago at the Runoffs. The seat mounting of his showroom stock car broke when it flipped. His seat belts were of no use immediately, and he bounced around the interior of his car. His neck and spine were compromised, and he remained in a paraplegic until his untimely death due to complications of his injury. As a result, showroom stock cars now run seats just like us in the name of safety.

Is your mobility or your life worth being able to adjust your seat?