Now at 32000km.
This is the best daily driver and stock car I have owned.
Returning 7.6l per 100km currently. This is 70% highway driving.
Overall consumption from day one is 8.6.
I have removed all the mods because the car is putting down +350whp in stock form and it's more than enough for now.
Only the M Performance exhaust remains.
I did put down 302wkw and just under 600nm. Setting the car up initially is a royale Pain. It's so different from the N54. Because of the torque limits, you can t just dial up the boost with some octane. Then there's the AFR management, which is extremely difficult to get down. Adding straight BP98 did nothing for me. Meth helped a little only when you use a progressive spray. Going past 17psi is a waste. Heavens help you if the car gets hot.
All of this for 50 to 60whp. Not worth it IMHO.
Most of the issues are resolved with a Stage 2 Flash which is a $450 expense but the gearbox remains the limiting factor. A gearbox flash is currently $500.
If you are willing to part with $1000 and your motor plan the b58 should give you 100whp over the stock figure. I don't know anyone who is willing to do that yet.
In a years time once the cars start coming of MP we should start seeing a few monsters lurking IMO.
This what is could achieve consistently without any issues.
Not worth the grey hair or maybe I am just getting old and complacent.