I want to upgrade my radiator on my 04 coupe AT and came across the Mishimoto.
Anyone have this radiator? Reliable? Is it direct bolt-on as claimed on their website?

Yes it is bolt on I was just talking to another G owner that put it on and he said it was perfect

Was he able to use the OEM fans or had to get the slim ones?

mine fit like shitsnacks. but i does use teh OEM fans

If you're gonna get the mishimoto rad, I would go with the the radiator + shroud/fan combo, that way you know that it will all be perfect and work well together.

Had to do a little triming to the rad. shroud, but was able to use the stock fans.