B&M 70266 SuperCooler Automatic Transmission Cooler Rigid stacked-plate design is resistant to damage, and much better at cooling than ordinary 'fin and tube' coolers Constructed from black finished lightweight aluminum alloy for maximum corrosion resistance 11" x 8" x 1-1/2" racing model is rated at 20,500 BTU, and pressure tested to 200 PSI Fluxless, oven brazed construction is vibration resistant Multiple oil flow paths for maximum cooling efficiency