www.nitrousexpress.com i put a kit on my previous Miata and it was great. www.nxmx5.com they're alot of fun if you do it right. but abuse it and youll be stuck with a paperweight.

do some research before you run out and buy one. they have many generic kits: domestic/imports, 4-cyl, 6-cyl, dry vs. wet, etc. If you have any questions id be more than happy to help.

Rob