shiiiiiiiiiiii it definitely makes a difference in my 325 polaris trail boss. it didnt make it a whole lot faster but it definitely made it run a hell of a lot better.
hell ya, built a engine that sounded just like that. i built a 408 out of a LQ9 that made almost 1200HP at about 20psi with a procharger F1R and if that wasnt enough we added a 500 shot of direct port nitrous juuuuust in case lol