All 4AGE engines possess the identical exhaust port situation and only the 20v engine includes a distinction Together with the mounting deal with. That change remaining that around the 20v The 2 outer holes are put more outwards that its 16V equal. Using the 20v engines conveniently gaining reputation off https://caidenkhapj.bloguetechno.com/the-basic-principles-of-blacktop-20v-4age-66634165