Hello,
would like to share a dyno graph of my tuned W212 E63AMG
car has upgraded cooling for turbos (larger radiator)
catless stock downpipes
76mm catback
98 octane fuel
on a base line run with stock tune car made 454WHP which is 553HP (18% drivetrain loss) (stock clained 525HP)
after custom tuning car made 555WHP but i reduced power down a bit to stay on safer side and have 0 timing retard
so end result for now is 545WHP (664HP)
and thats on baby boost 11psi tapering down to 8.5psi