No problem, that 5500 rpm dip you have in boost and power curve is pretty normal for stock pill. The upgraded pill smooths it all out.

btw, I'm saying all this because it's true, not because I am trying to sell a $15 item that we make barely any money on. We developed this pill years ago for our own use in tuning Evo's better with ECU-boost and eventually started selling them.

- Bryan

 

will it work on an untuned car, or is a tune absolutely necessary?

 

tune or adjustments to your wgdc tables required