XHP have released V3 map for 335i/135i with some notable improvements around shift behaviour and a increased line pressure limit.
This may be a saviour for us with aftermarket upgraded trans builds. My Nizpro hasnt liked the XHP much and although its better than stock in shift times ,there is an erratic and inconsistant experience around a range of shifting behaviours that go with it.
I flashed this new version yesterday and so far it has greatly improved the situation with a small amount of tests after properly running in the flash (very very important).
So far I can say the shift consistancy is there along with smoother ,less jerky downshifts and importantly I havent yet experienced the really painful occasional torque drop (brick wall) when upshifting. On modified trans we get a mixture of behaviours from surging forward on upshifts to feeling like the car has lost power. So far so good. Will continue to report on it.
What are others experiences so far?
This may be a saviour for us with aftermarket upgraded trans builds. My Nizpro hasnt liked the XHP much and although its better than stock in shift times ,there is an erratic and inconsistant experience around a range of shifting behaviours that go with it.
I flashed this new version yesterday and so far it has greatly improved the situation with a small amount of tests after properly running in the flash (very very important).
So far I can say the shift consistancy is there along with smoother ,less jerky downshifts and importantly I havent yet experienced the really painful occasional torque drop (brick wall) when upshifting. On modified trans we get a mixture of behaviours from surging forward on upshifts to feeling like the car has lost power. So far so good. Will continue to report on it.
What are others experiences so far?








