Mazdaspd1

I got a 95 protege DX right now, the first thing is that I'm having a problem with it starting in the morning. When i turn it on the car shuts off right away but if I keep my foot on the gas pedal for a little, the car runs good. it never did that untill I put on my Injen intake on. the piping was custom work by me but I put everything back like it was. The other thing is that I'm from Cali and I'm trying to get a few things for ma car to get it going up to that next level in performance. I put on the intake and the cat-back but I didn't feel that much of a difference. Sounds a lot nicer but performance only increased a little. What can I fit in that car. I was looking @ some turbo motors but I'm not too sure yet what to go with, if any one has suggestions, hit me up and let me know. I'm not sure if the 2.0 motor from a 2000-2003 would go in easily. I'd appreciate it if you guys let me know wasup when you get a chance. Thank you.