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Old 06-05-2014, 12:13 PM   #1
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geoffff's Avatar
Join Date: Apr 2007
Location: Seattle, WA
Posts: 1,029
What Is the Stock Exhaust on the 6.8L V10?

I just got the rear end of my exhaust (muffler back) replaced, and I don't like it. The replacement muffler is louder, and the tailpipe looks narrower than stock. (They put a 3" pipe on there.)

Anyone familiar with what exhaust I used to have, as shipped from Sportsmobile in 2004? -- is it just the "stock Ford exhaust for a V10"? Or some kind of "RV" exhaust?

Any idea what tailpipe diameter I had? I'm guessing I had a 3.5", but that's only because the 3" looks kind of small to me.

Before & after:

-- Geoff

2004 Ford, SMB 4x4, RB-50
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Old 06-05-2014, 01:33 PM   #2
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carringb's Avatar
Join Date: Jan 2009
Location: Corvallis, OR
Posts: 5,086
Re: What Is the Stock Exhaust on the 6.8L V10?

Stock is 3". Your pics on the left looks stock.

There's actually very few aftermarket mufflers that allow the V10 to sound decent. It's firing order means any straight-through exhausts make it just sounds like a loud ricer (it fires like twin inline 5's). The good mufflers have resonance chambers to add a little rumble back in, without it just making it loud. I like the my Banks sounds, although low RPM with a heavy load can be a little loud sometimes, at least in the driver's seat (oddly, once you move even just a little outside the driving position or sit in any other seat, it's much quieter... some weird acoustic thing going on with the windshield I'm guessing). Other than a small section of DynaMat over the muffler, I haven't done any soundproofing yet.
2000 E450 dually V10 wagon
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