Where are you located? As mentioned, check with the trackday organization you want to join and ride with. They'll list the gear and tech requirements on their website. Most all allow 2 piece leathers as long as the zipper is full circumference. You usually don't need to replace antifreeze and safety wire the oil drain plug/filter/filler cap until you are in the advanced group. Even in advanced, you still don't need race bodywork, just have everything taped up and disable the brake light. That's how it is with the group I ride with.
If you're just starting out and have never been to the track before, just tape up your lights and go learn and have fun. As you get more involved with the sport, you can upgrade. No need to try and meet advanced tech requirements for your first day. Although, it is great if you do! Just make sure your oil plug /filter are properly torqued.
Last edited by HondaGalToo; 02-10-2015 at 06:53 AM.