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4.6l plenum

  1. Warning about Stack Racing 1999-2004 4.6 Intake Plenums / AM Received A bad Lot

    4.6L Tech
    AM received a bad lot of Stack Racing Plenums. I purchased an intake Plenum from AM on 1/14/2011, received the part yesterday and wanted to warn you all about a problem I ran into. 1st let me say AM was great about correcting the problem after sending some pics and a few phone calls. Now...
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