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Old 09-26-2010, 01:20 AM   #4
Registered User
Join Date: Apr 2010
Location: ca
Posts: 34
My Ride: m3
Originally Posted by Many330i View Post
For city driving on a 2.5 motor, I say that's rather low - I get about 21mpg city on a 3.46 diff!

..and I don't understand why people add a box, sometimes dual, in that little trunk? In addition to lowering your hp/weight ratio, the bass doesn't sound half as good as an IB set-up, which I have!

That said, as a start, change your plugs if they have never been touched and your tires too if they are a little aged.
I beg to differ. I just had a 12'' put in the trunk in a built sealed enclosure and I'm pretty sure that it would beat down any free air set up in the same ballpark of audio parts used. That, along with 2 amps and a set of components, probably added a total weight of 25lbs to the car.
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