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1997 to 2009 Expedition and Navigator 4.6L and 5.4L (2V and 3V) equipped Expeditions and Navigators

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Old Thu, December 10th, 2009, 12:38 AM
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In my ever relentlessnes of touching my vehicles I am gonna upgrade my exhaust on the Expy. Being cheap (broke) I am going to use a take off OBS stock exhaust. I figure since its a straight through muffler and 3.5 inch it should let it breath pretty good and not be too loud.
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Old Thu, December 10th, 2009, 08:41 AM
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When you look under there you'll see a "Y" pipe(after the headers w/cats on it). The next piece back is called the intermediate pipe(just before muffler). Do not exceed 3" on the intermediate pipe for it may cause a loss in low end torque.
Hopefully the hangers all line up.
FYI
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Old Thu, December 10th, 2009, 11:23 AM
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On this one the next piece back is the one with the muffler on it. I am sure I am going to have to modify it to make it work.
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1992 Calypso Green Mustang notch
1995 Mustang GT
2004 Explorer Limited
A veteran is someone who, at one point in one's life, wrote a blank check made payable to 'The United States of America', for an amount of 'up to and including my life'. That is honor, and there are way too many people in this country who no longer understand it. -Author Unknown
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Old Thu, December 10th, 2009, 01:01 PM
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Try to leve that piece attached to the muffler at 3" for as long as possible.
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