I have a 1998 Mazda 626LX 2.0L. 125hp
I was wondering what are some easy ways to adding horsepower to my car. i race it now with no horse power but i still win a god amount of races. i dont know why but i do lol

 

put a cold air intake, changes the headers, change cat to a high flow cat and get a preformance exhaust! no point in doing only some of these unless yo uare going to do them all because you will bottle neck your system otherwise....