Go to the dealer and the on/off thing can be taken care free of charge with a software update. Once you leave it off it will maintain through future starts and you won't have to worry it about it again. If you want a nice exhaust sound trash the exhaust and purchase the M performance exhaust. Installed it's about $1700. Well worth the tone and the lack of back pressure. HP add? I don't know. Don't care. Like you the 6 is plenty for me.

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Forget your Past but don't let it stop you. Tough times don't last. Tough people do.

My Car:

1994 E36 Convertible (Inherited from my Loving Father)

2013 640i Gran Coupe
Carbon Black Metallic
Ivory White Nappa
Everything but B&O, Night Vision and Active Cruise Control.