Stillen Headers on 370z

Originally Posted by RelentlessRY

upev is a way to tune a factory ecu. They are eagerly working through the 370 computers. Rich and Jarad over there are great guys. I would get all your bolt ons finished then do a tune, that is my plan.... I am still wondering how to tune the vvel i understand the concept as I been through the Nissan training on it, but how to maximize it with a not adjusting exhaust cam.

On a side note talked with Josh from stillen a bit today and i think the reason we are losing power in the midrange is due to the increased flow of the headers but the bottle necks in the factory y-pipe. I can not say enough how great there customer service is/has/ and no doubt will be.