Both exhaust sleeves in the rx4 rattle like crazy. They are quite loose. I can pull the front out far enough to see some of the knurl on the outside of the sleeve. But for whatever reason i can not get them to go all the way out. The air injector nozzle does not appear to be there. But for each sleeve, one hole seems plugged? Doesn't seem to be hitting the sleeve though but i could be wrong. Since these are "unpinned" im not sure what this is so hard