The blacktop has lighter internals which are also weaker, but it's a bit faster. No damage if you're not carrying out any massive mods, but any forced induction and you will be needing to uprate the blacktops internals. Good day all! Only to catch every one up to speed and https://deanuvuxw.blogunteer.com/26392815/top-jdm-toyota-4a-ge-secrets