I would say there is no need. Even with the boost from the electric supercharger shouldn't need a tune as when I had my car supercharged (the oldschool expensive way) I didn't need any change to my ECU and it's on a 10 year old car. From the product description, the OBD will intercept the override the factory ignition, fuel and trans shift readings and adjust it more aggressively than the factory ECU would usually do. Edit: Look what I did. I paid $230 twice for a Ultra Racing strut brace on two different occasions to test a theory.