Originally Posted by ben1364
...For the sake of discussion let's assume that by removing the charcoal filter which is in the intake for a reason, the engine did in fact produce an additional 13 bhp with no loss in driveability and no emissions penalty. In this case, how many of us could feel the 13 bhp difference in a street vehicle of this weight? I know that I could not!
1. "which is in the intake for a reason" It's not in the European models therefore it is not needed.
2. "how many of us could feel the 13 bhp" Well it seems like matsarge and all
the people who posted an the 5 series forum did.
I believe they all have said the car runs smoother