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Tailpipe diameter

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Old May 18, 2009 | 05:38 PM
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Sarnan's Avatar
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Tailpipe diameter

What is the correct diameter of an OEM tailpipe for an 04 5.4L FX4? I've seen both 2.5" and 2.75" listed.
 
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Old May 18, 2009 | 06:07 PM
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From: OH-IO
I believe the stock pipes are 2.5"
 
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Old May 18, 2009 | 06:20 PM
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The tailpipe is 2.75". No clue why, probably to silence it a bit more, but all 04+ tailpipes are 2.75" exact. From the manifolds to the muffler inlet its 2.5.
 
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Old May 20, 2009 | 09:58 AM
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Was this unique to the '04? PIA muffler shop is giving me a hard time.
 
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