old dude Posted June 19, 2010 Report Share Posted June 19, 2010 in extreme os 3+ or 5+ i am guessing that 3+ means you can use more than three and 5+ means you can have more than 5 the rules dont say what the + means. it does show how 3 subs and four subs should in set up around the center line of the car. Quote mobile chornobyl Link to comment Share on other sites More sharing options...
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