[BR3W CITY]

MS is great but its taking the long way around the problem, unless the vehicles has a specific need to do things like driver abnormal amounts of enriching injectors, control COP spark on a non-equipped vehicle, all sorts of goofy stuff. I believe there is a newer member on here who is actually pretty well versed in this topic. I want to say his name is Matt C or something like that, saw some stuff he did on an MS website. It makes sense for your tpi but i fee like its going out of the way for an ls.

GM Spent millions of dollars developing a pretty dang good ecm, in regards to something that is functional yet actually pretty simple to work with.