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Thread: Muffler manufacturer

  1. 11-10-2005, 06:15 AM #1
    fourteenten
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    Muffler manufacturer

    Which manufacturer supplied Porsche with the mufflers in the early 70's?
    I found a part number, 901.011.08/9070, on a muffler but can't find a relation with a PET number. Any idea?

    Thanks,

    Cees
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  2. 11-10-2005, 07:30 AM #2
    bob tilton
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    Leistritz or Liestritz...can never remember the spelling.
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  3. 11-10-2005, 09:16 AM #3
    smg911
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    The correct spelling is Leistritz.
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  4. 11-10-2005, 10:59 PM #4
    fourteenten
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    muffler manufacturer

    Thanks, I just scraped some paint of the muffler I recently bought, and stamped in it was Bishoff. The number 901.011.08/9070 must be their internal number. The size of the 070 is a bit bigger, could be the manufacturing date. Would there be any (performance, back pressure) difference between the Leistritz and the Bischoff?

    Cees
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  5. 11-11-2005, 08:03 AM #5
    glaverbel911
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    Cees,, no difference, you could get either or at that period..
    and yes,,, there were date stamps..

    Regards, Robert..
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  6. 11-12-2005, 12:08 AM #6
    fourteenten
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    Thumbs up muffler

    Great, I picked this Bishoff muffler up on eBay, in great condition and definite candidate too replace the muffler that's on the car now.
    Thanks all for the info!

    Regards,

    Cees
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