I had a monza on mine when I got it. Definitely would not pass in the UK /bcforum/images/%%GRAEMLIN_URL%%/lol.gif It does make a mellow tone, but I am not satified with it. I enjoy the sound of the straight pipe and also like quiet when I am on the highway. Been thinking about designing a cutout. One that really works, not like the ones that I have bought from JC Whitney in the past that leak and defeat the purpose. That way you could choose muffled quiet or straight and loud. I have make it where it fits in that small area between the gas tank and rearend and back bumper. My monza does not look like yours ncbugeye, it is more cylindrical, yours looks more like the old cherry bomb style that had fiberglass in it and this would burn out over time and get louder. I bet that one is loud.