The weapon R one is nice and the only one with a site tube where you can see the fluid level inside but it has a design flaw as far as I'm concerned.......the inlet for the coolant coming from the radiator into the resevoir is up near the top of the can sooooooooooooo there is no way for it to suck the juice back into the radiator without modification. What good is it to just keep pushing fluid into the can without a way for it to pull back into radiator. If they would have just put the damn port down towards the bottom of the can it would work just like the plastic jug does. What I did on mine was pull a silicone vacuum line thru the port enough to touch bottom of can and nip the corner off the end so it can suck the juice back to radiator. I cut the end sticking out of the port off where it just sticks out about 1/8" where you can put the hose over it and run the hose back to the radiator nipple. Attention to details like this matter a lot. The answer I got about it from them was that it was universal to be used as an oil catch can too. I call BS on that too because the overflow tube is tiny like the site tube and not same diameter as the port where you connect the hose. I would not even attempt to use this for an oil catch can. My OBX oil catch has 2 ports on top, a site tube & a drain plug on the bottom. The lack of forsight on this is not impressive.
And..........after doing all this, I was unwilling to use the plastic oem jug.
All this aside, you can bend the oem bracket flat and gain a couple of other mounting possibilities using existing bolt holes in the area by angling it in different directions. The same hose will still reach to radiator too, just maybe different route kinda like in the other post pic above.