One is deemed safe for most vehicles. The other is optimized timing and fuel specific for your car.What is the difference from a custom tune vmp done on dyno to that sct vmp device? Do they both give you the same horse power? And last what is the pros and cons of owning either sct device or a custom tune
Kinda. If you get a dyno tune, they can flash it straight to the vehicle instead of needing the SCT.For your second question I'm not sure what you mean. the SCT device hold and transfers your custom tune. It's like asking if its better to own a computer or run Microsoft Windows. You need one for the other.