I was thinking about doing this to the rx7 I just baught is there a specific kinda color dye that has to be used to make it work better?

I've always found the 3M products to work the best. More expensive 'cuz 3M, but they work well. You'll need a cleaner and plastic prep as well. Follow the directions EXACTLY, very easy to mess up dyeing plastic.

Well price of those products isnt a problem I get dicsounts on my parts. But theres a vynal interior paint that 3m makes that isnt really a color dye though is it? I thought it was more or less a interior paint that just bonds to the interior plastics. And if its primed and clear coated would it withstand the heat and whatever else the weather here in florida wants to throw at it??

It's been a while since I did interior stuff, I'm not sure what products they're currently offering. I don't remember the stuff I used needing to be clear coated though.

Just trying not to steer you wrong, certain materials require different applications, so you'll have to read up on intended useage. 3M provides a lot of information on their products to help you decide if it's right for your application and material. There is no one magic spray that will cover all materials and fabrics necessary.

I've never had their products fade or chip on any of the parts I've used them on, which I have with other brands. I don't live in Florida so I can't swear to the long term effects of Florida sunshine, but they have worked well for me in the past.

A shop that deals in automotive paint would have access to the full range of their products to do pretty much whatever you were looking to do I would think. I've been sold on 3M products for paint and bodywork stuff for quite a while since trying many cheaper brands.

Just a recommendation for you to look into, to make up your own mind. Good luck and I hope it turns out the way you want it to, the prep work is what makes or breaks a superior job.