Mishimoto fabricated this tank completely from high-quality Tig-welded 6061 aluminum materials to outlast the design of the plastic factory tank. It is compatible with the stock expansion tank cap and will include an overflow nipple on the neck for adding an additional coolant tank for those of you who need to be in compliance with NHRA rules.-

Other features include a sight tube which will allow for proper hot and cold coolant levels. An internal baffle keeps coolant near the overflow port during aggressive driving conditions which will prevent air entry into the coolant system.-