The Racer X Fabrication coolant tank for the 2012+ Chevy Sonic replaces the OEM coolant tank and relocates it to clean up the engine bay. The Racer X coolant tank is CNC cut and formed before finally being TIG welded. The coolant tank allows you to completely remove the OEM tank that is large and takes up a bit of space. The new location of the coolant tank is placed on the front of the OEM battery tray and is ONLY compatible with the Braille B3121 battery and the Racer X battery tie down. The coolant tank comes standard in a raw aluminum finish with a new Racer X coolant cap, uses simple fittings with easy view sight glass and all necessary lines/fittings.