Fellas - Thanks for the good feedback on doing or not doing performance mods. to the Box. After reading replies and doing some research on other sites I think I'm going to leave her as she is for now. My itch comes from owing a 99 M roadster where many mods can be installed and guaranteed from the dealer and actually do improve the cars performance level. Seems with the Box you on your own with the mods and the results and reliability are questionable. Making your ride better is fun but after owning the S for a few short months I'm convinced that the car is almost perfect as it is.
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