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poor cold start

  1. Poor cold start after installing off road H pipe

    2005-2010 Mustang GT Tech
    I'm still having issues with my idle rpm's fluctuating after installing my Paxton supercharger from Brenspeed but now having other issues!! Ever since I installed the off road pipes a few weeks ago I'm having a poor cold start, the rpm's don't pick up to the proper idle speed quick enough. Any...
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