it was a opinion everyones is different and i respect his build i have a ka im my garage that my friend is building high comp too. i know whats involved and i know how hard it is to make that power. all i said was i hated the way it sounded. if he built a big ass header and ran it out the side of the car behind the front wheel or infront of the rear wheel and put a resinator or 2. it would help alot. and they do make 5in resinators so its not like its gonna hurt his hp. having a lil back pressure might even help his tq