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  1. Scion xB Engine, Tech, & Performance
    has any one tuned there stock engine? I have read around allot people tunes there cars and gain small hp. Just wanted to know if any one has done it before and is it worth the cash? gaining a slight hp gain is still better than 109hp
  2. Scion xB Engine, Tech, & Performance
    I have a 2006 scion xb and I am interested in getting it tuned. This is a naturally aspirated engine and I've got a guy that will tune it but I need help buying the right components. Now he mentioned something about this product this is only...
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