$399.95 - Thicker 'X-Line' Performance Radiator for Mitsubishi Lancer Evolution 10.
X-Line is Mishimoto's thick core Radiator that was designed to be fit in factory location without modification. It's thinner then other competition Radiators but is designed to perform like or better then those competition Radiators but without the "modification required fitment".
It is 2.5" thick.