i want to put more hp on my 2 L what should i do
 

hay there i want to add a few more hp to my 1998 2.0 L gulf the things i do not want to do is a exhoust that attracts cops also i do live in canada so i do have to pass emishons test so it cant be a poluter i was thinking cam but what size and stiff motor mounts
what do you think i should do