Precision Mini is not just America's premier MTH software dealer; we also develop products that make your MINI better. The first step in making your MINI perform ought to concern engine breathing and we have a "worked" cylinder head. Then you'll need to cool the charge with our aftercooler and scavenge it with one of our headers. And it's MTH ECU Tuning software that ties it all together. Race inspired and Track tested. Precision Mini.