Matt, are you talking about the 330d or CSL with +40bhp at the top; I'm assuming the 330d although the 6200 rpm suggests the CSL. If the CSL, someone has been pulling your chain!
All newish diesel or petrol turbos can produce great results from a remap, a naturally aspirated, high output engine like the S54 won't give anything at peak, however just as Shimmy says, better drivability and possibly torque lower down.
Probably the main advantage (for trips to the ring etc), is the removal of the limiter. Most CSL remaps will remove this, if done by the factory.
Last edited by Nords; 25-04-2010 at 05:20 PM.
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