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  1. I/H/E... What's next?

    Scion xB Performance & Tech Help
    I'm just finishing up installing my exhaust, I need to put a gasket where my new s-pipe meets the scuba, and put a hanger on my newly made axle back. have an intake and weapon-r headers and dont know what to look into next for power. Any recommended next steps on a budget, or is this a good...
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