the 5zigen pro-racer aspec exhaust is the way to go man... crisp on the sound. when its pushed.. boy it grants.. great exhaust for any honda enthusiasts. best of all, u dun have to pay such a hefty price for it. comparing to kakimoto & fujitsubo, it's the same quality and with a lower price tag.
i deal with honda cars almost everyday and for every reason., from price to quality.. 5zigen pro-racer series is the best for the top-end category.

PM me if u r interested in one.