Mishimoto s radiators are already extremely well engineered to keep your engine cool.For some very demanding applications though, even something like that isn t enough.For this reason Mishimoto offer their special X-Line radiators.These use the same TIG welded all aluminium construction as their normal radiators, but come with 2-inch thick three row cores.As with the standard range, the core is all brazed and the end tanks are TIG welded.This is, in a word, hefty. The additional row of core provides additional coolant capacity and more surface area, both of which are good for getting rid of heat quickly.Note  For engines under high loads we d also recommend considering a high performance cooling product like Evans Waterless Coolant or Mishimoto s own Liquid Chill additive