Hey Jason, welcome to the forum. Do us two favors before your next post. Fill out your profile with where you live so local dudes can provide local help, and fill out your signature with a list of ALL of the mods currently on your car.
If you've got a digital camera, take some pics and post them in the vbGarage. I think it's 150kb max for JPEGS, read this post if you want to resize them on your computer to fit: http://www.miataturbo.net/forums/sho...63&postcount=5
Just a few more pieces if information can go a long way in helping us help you:
Have you ever driven/ridden a turbo Miata?
Experience with turbo cars/systems in general?
Tools/place to work? General "car/mechanical" knowledge?
What kind of power do you think you want to make?
What are you going to do with it? Track/Drag/Drift/DailyDrive/Autocross/etc...?
HOW MUCH MONEY DO YOU WANT TO SPEND?
Does it have to pass smog?
Are you planning on a running an aftermarket ECU?
Where else have you searched?
Do you belong to a Miata Club?
And the last question to answer... what kind of shape is the car in? Has it been well-maintained with regular oil changes and the like? Have you done a compression/leakdown test to determine the health of the rings and valvetrain?
For parts, there are two main competing Miata turbo companies out there.
For general Miata aftermarket and upgrades for performance like tires/wheels/shocks/etc... then do your homework at www.good-win-racing.com
Welcome to the forum!