hey man after going from two universal mufflers, 5 zigen fireball,tanabe hm, they both suck, but i finally got the greddy sp full catback system,this baby sounds great, with my 00 gsr, nice and quiet deep sound,no raspy , obnoxious noice, it sounds to me better than the greddy evo, my bro has greddy evo and it sounds, good but to me the greddy sp sounds very clean with my gsr i recommend you greddy sp full catback , it fits perfectly