whatta u mean? the 4" tip? why would the tip be too big? 3" isnt that big its a baby cannon. im not sure about the piping isnt the 1.5L civics 2.5"? if the tip is too big then what the hell do people with breeze buy cause i've seen alot of breezes with 4" cannons and they sound alright, i've currently got a oval sports box from liv exhaust on and sounds ok with a deep tone to it but i want louder and better looking muffler thats why im going for a cannon.