Originally Posted by JARblue

Joe came out with the internal heavy duty CSC first. Then Z1 came out with the CSC Elimination Kit a few years later, which I do believe was one of the first external slave solutions. But it was complete garbage. I went through 5 slave cylinders in like 30K miles. I put the ZSpeed CMAK in a few years back (~20K miles) and haven't even had to think about it since.