Introducing thePROSPEED Camaro ZL1 Heat Exchanger. This is one of the largest on the market, taking advantage of the space to allow the maximum frontal area for cooling. This also adds a little more then a half a gallon of extra fluid to the system and is also a direct bolt in replacement. 100% in house fabricated from all USA made components including the core itself. Add a PROSPEED Heat Exchanger Tank to maximize your HX systems cooling ability!