The ECU number matters to them because there are a few variations of engines, each of which have differently structured ECU's. They can only cater for 1 type. They wont say that they dont have a kit to fit RHD, Ask who ever you are talking to (Chris Collier?) to categorically answer the question yes or no. Yup its Chris l am speaking to, I will ask him yes or no when l am home. Again cheers bud