Well I bought a 2002 wrx. I have always owned rotary's so dont know to much about boxer engines. Well first off My check engine light came on It said cylinder one misfire. Well after I replaced the plugs the light was stii on. So than me and my buddie "another rotary guy" Thought it had to be a fuel problem I ran cleaner threw it like four times and it went away. Just wondering if this has happened to anyone else and if so what they did to fix it. Thanks for your help. Oh and just curious has anyone done a cobb stage 2 and if so how do you like it??