i wanna turbo my 2003 kia rio 4door sedan. its a dohc 16v inline 4. does anyone know where to get stuff for it?

 

you are at the right site for sure, but you must read to be able to benefit from others knowledge
you can turbo your car for cheap if done the hmt way, look at the turbo projects section, there you will see what people use for parts and the sources for those materials

the hardest part for your setup will be the manifold

 

There was a local guy who had a turbo kia rio that I beleive used a ssautochrome manifold (dseries) mounted upside down with a custom head flange on his setup. Just a thought, but It would be very easy to make a manifold for your car since there is alot of room. Hard part is going to find someone that has a head flange for it.