my mods are simple, full 3" Megan TBE with resonated test-pipe, K&N drop in & MBC (no flash of any kind). Logging timing with the pocket logger in 3rd and 4th gear I'm seeing timing is being pulled from 3000-6000 RPM with only a peak of 16 or so with any boost setting above 1.2bar. But if I run the MBC on its lightest setting just to eliminate the boost taper I see between 1.1-1.2 bar in fourth gear and my timing will climb steady to a peak of 19-20 degrees by 7k with a very small drop to 5 degrees at my TQ peak.

I'm guessing the cold air mixed with the crappy winter gas here in PA is the cause but I want to see if anyone else noticed the same thing??