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forge fmic or other mods

  • forge fmic

    Votes: 3 21.4%
  • scorpion cat back, jetex, phenolic gasket

    Votes: 11 78.6%

  • Total voters
    14
Yeah spooled up quicker, a silnecer is removed but it never sounded any louder.
I still have the cat and standard back box.
55mm iirc the diameter, just mated up to the rest of the standard system.