|
I purchased the MPE on my E92 (328) and it was an extremely welcome addition.
For this car (m235i), I decided to try the valve disconnect via an OBDII Can Flap module. This essentially allows both pipes to be open all the time and I am very happy with the results.
I would strongly advise disconnecting a valve to see if that satisfies your desires -- it could save quite a bit of coin.
The comparison between the two setups isn't particularly relevant, but I would say that the M235 is within 10% of the MPE (on the E92) when I have the Can Flap module active.
|