I'm trying to install a lower temp thermostat into my 08 xkr , none with lower temps are available but it looks that thermostat housing aj84225 might be a direct bolt on out of a 03 xjr and will allow different thermostats to be put in, although I'm not sure if the other piece of the housing will allow the one piece thermostat to be put in. I believe part aj84225 was superceded with newer version which is the same one as 08xkr have with the 3 piece thermostats and only one temperature opening temps of 190.
Anyone got any info on this?