Magnaflow catted x-pipe

Discussion in 'SN95 4.6L Mustang Tech' started by Skidzz, Dec 31, 2005.

  1. Skidzz Tinkerbell

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    I'm getting ready to order the magnaflow catted x. That is, if partshopper.com ever gets it back in stock for my car. I need to know 2 things: first, will i need O2 sensor extensions? And, would it be a good idea to go ahead and buy MIL eliminators, or will my engine light stay off?
    Skidzz, Dec 31, 2005
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  2. 04YELLOWGT New Member

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    No 02s and since you got the Catted you wont need MIL Es.
    04YELLOWGT, Dec 31, 2005
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  3. timeless2 Vi Veri Veni Versum Vicus Vici

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    You could possibly need MIL eliminators, even though you have aftermarket/hi-flow cats.

    Run without them first to see if you throw any codes, then get a set of MIL eliminators or a tuner (xcal2) to rid yourself of the codes.
    timeless2, Dec 31, 2005
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  4. TacBear Founding Member

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    I've had a Magnaflow Catted-X pipe for 5 years and have never thrown a code. Now that I have the Supercharger installed I turned off the rear O2 sensors (all they do is tell the computer if the cats are working) and installed a wideband O2 in the passenger side rear O2 bung.
    TacBear, Dec 31, 2005
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  5. Stangdriver1119 New Member

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    The mustang shop that installed my magnaflow catted x-pipe told me 5 out of 10 cars will need MIL elims due to the check engine light coming on and the other 5 will still be ok with the increased air flow out the exhaust due to the high flow cats. Oh and I needed 02 sensor extensions.
    Stangdriver1119, Dec 31, 2005
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  6. mrvax Stay thirsty my friends

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    1. You will not need extenders.
    2. MagnaFlow is known for using hi perf cats that work well. They should not throw a code. I'd be surprised if they did.
    3. I had my rear O2's turned off about a year after my Xpipe when I had a reflash done.


    Summary: No worries!
    mrvax, Dec 31, 2005
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  7. trinity_gt Active Member

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    Shouldn't the WBO2 be installed before the cat to get a more accurate reading? :scratch:
    trinity_gt, Dec 31, 2005
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  8. javsvt Member

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    Had mine on for 3 months, no code. I didnt need anything. Sounds sweet too! :banana:
    javsvt, Dec 31, 2005
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  9. Silvr04GT Founding Member

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    The only cars that need the extensions are the 04s. And my car hasn't thrown a code ever either.
    Silvr04GT, Dec 31, 2005
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