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test pipes on 95 GTB.

Discussion in '348/355' started by yelcab, May 30, 2016.

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  1. yelcab

    yelcab F1 World Champ
    Consultant

    Nov 29, 2001
    13,662
    San Carlos, CA
    Full Name:
    Mitchell Le
    #1 yelcab, May 30, 2016
    I put on some test pipes on my 95 BTB and went driving with 3 other cars this morning. Sound wise, the car absolutely drowns out three other 355s this morning. The CEL lights come on for both banks every time I laid into the gas, and then CELs will go off if I back off the throttle I seem to remember the same thing on other 2.7 355. Does anybody else have that?
     
  2. Dave rocks

    Dave rocks F1 World Champ
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    Nov 23, 2012
    16,047
    Orchard Park, NY
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    Dave Lelonek
    #2 Dave rocks, May 30, 2016
    Mitch, I have a 95 with test pipes. It has a Capristo and is loud when the bypass is open but otherwise it's not loud at all. Never a CEL but I've only put 1000 miles on the car at best.
     
  3. ClydeM

    ClydeM F1 World Champ
    Owner Rossa Subscribed

    Nov 4, 2003
    12,061
    Wayne, NJ
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    Clyde E. McMurdy
    #3 ClydeM, May 30, 2016
    My '95 has no CEL issue with test pipes.
    However, the P/O tied the bypass open so the CELs would light when I had a long no-load scenario - like coasting down a long hill. Untied bypass & CELs went away.
     
  4. Drock28

    Drock28 Formula 3

    Jan 13, 2013
    1,430
    Montreal
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    Tony
    #4 Drock28, May 30, 2016
    would need more info how you have your car setup.

    but otherwise a 95 2.7 car should not trigger cels with test pipes.
     
  5. ttforcefed

    ttforcefed F1 World Champ
    Rossa Subscribed

    Aug 22, 2002
    19,269
    #5 ttforcefed, May 30, 2016
    I have tubi test pipes, tubi headers, tubi mufflers, Bradan Y pipe - never had a CEL
     
  6. Robb

    Robb Moderator
    Moderator Lifetime Rossa Owner

    Feb 28, 2004
    14,440
    Tucson, Arizona, USA
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    Robb
    #6 Robb, May 30, 2016
    No CEL's on my '95 with capristo stage 2/3, hollowed out OEM cats, and Fabspeed headers.

    My bypass valve is OEM and unmodified.

    Robb
     
  7. LorenzoR

    LorenzoR F1 Rookie
    Rossa Subscribed

    Sep 26, 2015
    3,205
    Sarasota Fl/Pittsburgh
    #7 LorenzoR, May 31, 2016
    no cells on my 95 with test pipes, capristo 2 and oem headers
     
  8. ShineKen

    ShineKen Two Time F1 World Champ
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    Aug 3, 2007
    20,032
    Southern California
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    Nostradamus
    #8 ShineKen, Jun 1, 2016
    If you're getting CELs you need to modify the thermocouples
     
  9. ferrari bud

    ferrari bud Formula Junior

    Jun 29, 2014
    261
    SF Bay Area
    Full Name:
    Chris
    #9 ferrari bud, Jun 2, 2016
    I was the driving directly behind Mitchell for 50+ miles, he sounded awesome, but he probably couldn't hear my Capristo/Hyperflow combo.

    Curious how it sounds from the driver's seat...
     

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