I believe the ITB's are usually not in equilibrium, making the vehicle managing rich and earning the vibration sound. No, I feel you'll find too many differnt variants of 4AGE's that no-one has bothered. I believe MRP does a 20V adapter loom but I havent witnessed anybody local supplying 16V https://toyota4ageengineforsale15814.blogdemls.com/29217115/top-guidelines-of-jdm-toyota-4a-ge