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  1. Port tuning

    Custom Modifications- Audio & Video
    i recently posted a 134.8 at a spl show with my 2003 dodge ram 1500 quad cab. ive been doing some research on how to make it louder and what frequency it should be tuned to. it is currently tuned to 33htz but ive read that you should tune it to the trucks resonant frequency. can someone help me...
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