[maros]

My stock M was at 338hp (343 european m3). It's best if you look at head to head results. When I had "stock" cfr 550 (dynoed 470hp) I was a little slower than stock 997TT (480hp). Then with 494hp (9psi) I was a just a little bit faster than that Prosche. If I used "your" numbers, at ~550hp I would be slower than a 480hp 997. It doesn't add up.

But let's just say that dynos are different. You can't really compare the numbers, just the results