In the diesel industry, it’s not uncommon to find that some tuning products don’t live up to all the hype. Oftentimes, horsepower gains are claimed on paper but never realized in the real world. This ...

Edge Products is giving GM Duramax owners a shot at upgrading their oil-burner with its new Insight CTS3 and Evolution CTS3 kits, offering not only digital monitoring of engine parameters, but also ...