I got rid of my stock ugly coolant overflow tank. I need ideas for something to replace it. Pictures would be amazing. I bought a stainless water bottle and tried to put it underneath in the front, but I can't seem to squeeze it in there with my bigger intercooler.

 

Paint it black. Leave a vertical stripe section unpainted to easily monitor the coolant level. Done.

 

Can't see it well in that pic, but I used a oil catch can for a coolant resovoir, its right behind the black pipe coming off the 90 degree to the TB

 

I use a mishimoto one
put one of those intake brackets in the middle, attached to a piece of metal, you can mount it anywhere that way.

 

PRC Surge tank.