The blacktop has lighter internals which are also weaker, but it's a bit a lot quicker. No hurt if you are not doing any large mods, but any forced induction and you'll be needing to uprate the blacktops internals. Your browser isn’t supported any longer. Update it to get the https://toyota-4age82580.bloggosite.com/32975138/blacktop-20v-4age-secrets