Hamann or OEM Performance kits... intersting! You guys all have the N55 so Dinan is not an option then? I don't recommend it anyway, a few issues with it. What does Hamann have to offer?
I have definitely noticed the the lack of torque, but I just don't think I can go back to the round tips! (although mine are crooked...) Any aftermarket exhaust is likely "open" too and will result in less low end torque but maybe some extra high end ponies.
highway drone aside, I agree with the 10 year old that is does sound cool, especially in a parking garage!
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