It hasnt made it back to the dyno, We only changed to the 6psi pulley yesterday, and I removed christians 4000rpm limit (ohh he hated that.. lol) and made sure spark and afr was all good. Straight off the factory floor, these 315kw GT Motors pull 2degree's timing via the knock sensors. With the knock sensors disabled, the engines actually ping.. With the factory gains, the pcm is only ever pulling 0.5 degree of timing if anything, given that, there's still room for extra timing, but that wont be done until it hits the dyno. Power wise, it would only be a guestimate. But based on how it pulls, I'd say its passed the 300rwkw mark. When it hits the dyno, we'll see how far we can push timing with the 6psi pulley. There are 2 other spare pulleys we are going to try, based on this one we've put on, we suspect its 8psi, and 10psi (plus the original 12psi one, which struggled to make 300rwkw because of the lack of timing we could put into the already high 10.8:1 compression engine)