Call me old or something but unless my car is somewhat fast or powerful, I feel embarassed if I had a loud system and no power to back it up.
I'd rather have a quiet system so if I beat some Honduh ricer, it makes them feel that much worse thinking I had a stock drivetrain. At the same time if I'm really trying to beat someone off the line and lose, it's a saving grace knowing the other driver might not have been sure if I was really trying or not based on the quiet sound.
Now on the other hand, if a performance muffler really gave 10hp or more on our m42 motors, I might have to think about it...
As for the weight issue, I don't run any rear speakers, seat belts, and spare tire. I run a smaller battery and the Slime kit is pretty handy. Some of that is obviously gained back by my rear wing.
