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grom big bore kits

  1. High Compression Piston and Oversized Ported Head - GOOD KICK in the PANTS

    Grom Performance
    So we get a lot of inquires and emails regarding this combination. What works, with what, and how, and what will I get....etc. So we made a video to go over all of that information. Hope you enjoy: .
  2. BBK 101, If you are going to install, or HAVE installed, a BBK, please read this.!!!

    Grom Performance
    . So our last post got completely out of hand and off track. So we are starting a new one. This post is not meant to be "Gospel" But, it is meant to help some of you understand A/F, BBK, Heat....etc.. If you have read this forum enough, then you know the Grom Runs Lean...