Yes, E67.

Anyone have tunerpro base files for a stock LS3 crate engine? Can't find any for just a stock engine.

Noticed newer GM MEFI controllers have capacity for separate BARO sensor for "altitude compensation", according to GM MEFI literature. Doesn't the MAP adjust for lower air density with altitude as...

Looking for advice on tuning software for the newer MEFI controllers. I hear HP Tuners is working on developing the software but with no expected release date. Anyone have experience with MEFI 5,6,...