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big 3

  1. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    Hey guys, I have another question. I might install a subwoofer in my car which needs a 1200w mono amp to power it. Would doing the Big 3 upgrade do anything to help my electrics cope with the power the amp will draw, or is it a rather pointless upgrade? I have heard mixed results with the...
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