look, here is the hks website even, so the price they give is $427... now, thats retail, now you kno if u look hard enough, u can get that price lower.. haggling with local tuner shop, ebay, groupbuycenter, a friend who is sponsored who gets stuff cheap(maybe around $350-375).. i kno u can get everything, the piping for 500 and the muffler. wow, $427 for just a STINKIN muffler, now u kno this made of good material, and of course a good brand name (HKS)...