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Help me ID these please

Discussion in '348/355' started by geno355, Jul 21, 2025 at 9:19 AM.

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  1. geno355

    geno355 Karting
    Silver Subscribed

    Jul 5, 2007
    227
    Winchester, KY
    Full Name:
    Geno Kearney
    #1 geno355, Jul 21, 2025 at 9:19 AM
    It's been several years since I let go of my 98 355 and 89 Mondial. Now I'm cleaning out my parts and I can't remember exactly what they are and which car they were for.I think they are hi perf cats I was going to put on the 355. Can anyone figure it out from these pics. I'm going to sell them and I don't want to misrepresent them. I think the late great Jack at NJB got them for me.

    Thanks,

    Geno
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  2. Ricambi America

    Ricambi America F1 World Champ
    Sponsor Owner

    Dec 7, 2003
    16,448
    Winston Salem, NC
    #2 Ricambi America, Jul 21, 2025 at 9:31 AM
    They are F355 cats -- they could be Nouvalari or Larini maybe.

    From what I can see, they are not HyperFlow (the cones aren't the shape that HyperFlow used to have)


    (If they were from a Mondial T, they'd have flanges on both sides. The F355 has a flange on one side, and uses clamps on the other side)
     
  3. INTMD8

    INTMD8 F1 Veteran
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    Jun 10, 2007
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    Lake Villa IL
    #3 INTMD8, Jul 21, 2025 at 10:05 AM
    They may be for an F355 but they are just mufflers, not cats.
     
    Ricambi America likes this.
  4. m.stojanovic

    m.stojanovic F1 Rookie
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    Dec 22, 2011
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    Serbia - Niš
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    Miroljub Stojanovic
    #4 m.stojanovic, Jul 21, 2025 at 10:22 AM
  5. INTMD8

    INTMD8 F1 Veteran
    Owner Silver Subscribed

    Jun 10, 2007
    6,757
    Lake Villa IL
    #5 INTMD8, Jul 21, 2025 at 10:25 AM
    Yeah that's why I said it's a muffler. Or a resonator, whatever you prefer

    It's a perforated steel core with either metal or fiberglass packing. Like an old school glasspack.
     

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