They aren’t easily interchangeable since the two mounting bolts are even further aside around the Blacktop trumpets. Please see “Throttle bodies” To learn more. These work quite independently of another adjustment to your ITB and when opened, allow for a little number of air to bypass the throttle plate. These https://erickjgcbu.bloguerosa.com/31336443/the-greatest-guide-to-jdm-toyota-4a-ge