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dual exhaust

  1. New Exhaust, power loss?

    Engine Performance
    Hi, I recently got a new Borla dual exhaust for the FJ. While the twin pipes look great and I love the sound, I THINK it feels like I lost some power. Is this possible? I am getting the same mileage & miles per gallon. I also got a new Mini Cooper S that is quick, so I kinda think driving it may...
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