got a 99 626 lx(4cyl 2.0l)
I am curious as to what steps to take on turning it into a speed demon. I have a KN filter on and am not sure about cold air intakes as I live in TX and air is never cold here. So, if I was to go with the exhaust next- is it better to get the exhuast in one piece? Seperate pieces? What are some other steps one could take?

I had a 99' 626 as my first car and you really should not try to make it fast...its a granny car, but if you really want to just do a full exhaust kit, then headers, AEM cold air intake, maybe a performance chip, it will be a little bit faster.

klze swap you can get the motor for $800 easy 40hp