Ok I bought 6 new injectors online cheap they were returns on amazon they are the 7mm and didn’t come with the sleeves.I didn’t know I needed bought what would fit my engine as far as year or so I thought. Can I swap my 9mm tips onto the 7mm body? I do not want to spend more money on these sleeves. So figured I’d ask before I tear them apart and try it on one I have two spares so won’t hurt my feelings to experiment on 1 new one. Or can I run it with just the copper washers and no sleeves.I read a number of threads online and no one out right said yes or no on swapping the tips and or no sleeves.