I have got Tom Welch's NOS/Propane System on my 2001 GTS and I am loving every minute of it. This system utilizes propane as fuel enrichment to keep you from going lean. But, I would add a window switch and nitrous filter to it just to be safe.
I don't know if I would go with a remote bottle opener. I have heard that they are prone to fail. But, I will admit that it is a pain in the a$$ to have to jump out at a red light and turn the system on. Which is exactly what I had to do this weekend just before I devastated this Red Ferrari Testarossa that just moved into our neighborhood.
Here is Tom Welch's contact info... I would highly recommend that you give him a call. Tom and his father have forgotten more about drag racing than most of us will ever know. He really knows his stuff and his customer service is top notch.
Tom Welch
BTR VIPER Performance
http://www.btrviper.com
[email protected] - Email
(352) 622-6219 - Office
While your at it... pick up a copy of his drag racing video. It is worth the price of admission ten times over.