RaceChip for S class.
But im wondering…since engine in 350d is identical as in 400d, om656 biturbo, with ecu tuning and stage1 both 350d and 400d go to aprox. 380-390hp and 820-900nm. Than why does racechip doesnt give figures like i tuned 400d? For 400d they claim 40hp and 80nm. (330 to 370hp).
Somehow i dont trust these figures not even a bit.
Did anyone use racechip on their MB and did dyno?



