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Old 03-23-2004, 05:01 PM   #6
Registered User
Join Date: Aug 2003
Location: Burke, VA
Posts: 7,635
My Ride: 2003 330i
Originally Posted by SpaceAge808
I am not using any fancy box. No fiber glass or bandpass or carbon fiber. Just a regular sealed box made of wood. Average in size and weight.

From the responses that I have been receiving, most people are speculating that it is the Weight of the box. Is there any electrical reason for this or something else that could have happened during the install?

Thanks for the help so far guys, keep em coming please.
Typically, the average box/subwoofers/amp, etc add about the same weight as having an extra person in the car. How does your mpg change when you have someone else in the car?

An easy way to find out if your system weight is causing the problems is to just take the subwoofer box out for a day or two and drive around. See how things improve.
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