Fast Intentions exhaust and header comparison. Before and after UPRev tune (Dyno)

Originally Posted by RCZ

Tony, we discovered that osiris couldnt control timing months ago and there are a few threads discussing it.

You guys should keep in mind that most if not all the power from those uprev tunes that made power, came from fuel management. What's been happening is that the folks who are already leaned out with bolt on mods are not making any extra power through the tune. On the other hand, the guys with fewer or no bolt ons experience a much bigger gain since you get to lean it out through the tune and make power that way.

You can't control the timing because the car has an automatic override linked to several temperature sensors. You could go nuts with it, but in the end it does whatever it wants to protect itself. It can be tricked physically, I've seen it done. It seems though that some companies haven't had this limitation and have been able to tune timing at will....

I made like 3hp from my uprev tune at a reputable shop who I'm sure would've done wonders with a stock car.

I'm starting to think we could pick up a good amount of power on a stock 370z just by tuning it. Probably almost as much as an intake and exhaust make.