FlexBilt Customs offers the Edge CTS3 Diesel Evolution Programmer. This programmer was designed to be a faster, slimmer, and the most comprehensive, state-of-the-art programmer on the market. Creating a perfect tool for those who want to have extra power while racing or towing.   What most diesel performance tuners provide is the much needed additional fuel economy but the CTS3 also provides much better throttle response and overall smoother driveability.