factory muffler replacement..... - Ford Powerstroke Diesel Forum

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post #1 of 3 Old 08-16-2010, 02:12 PM Thread Starter
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factory muffler replacement.....

Hi all,

I'm in the process of opening up my exhaust to reduce my EGT's, but I want to retain the same sound level of the stock exhaust.(don't want to delete the muffler, it's loud enough now) I currently have the stock cat gutted and want to replace the factory muffler with a flow thru design.


Question is if I replace the factory muffler 3.5 in/out(24" body lenght) with a 4" in/out(24" body lenght) flow-thru muffler will I be susceptible to exhaust drone and have around the same loudness as stock?


Please note:
I don't have the $$$ to swap to a full exhaust yet, just trying to get by with the factory system for now.

SOLD-2006 F-350 CrewCab, short bed dually, 4.10's, FX4/Lariat, PHP tunes & 58v FICM, 5" Diamond Eye exhaust, & much more....

Last edited by Quickerthanu; 08-17-2010 at 05:13 AM. Reason: edited muffler lenght
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post #2 of 3 Old 08-16-2010, 05:12 PM
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Subscribed... I was wondering the same thing.

2006 F-250 XLT Crew Cab
Zoodad mod
BB mod
Coolant Filter
Cat Delete
MBRP 4" Turbo back
SCT
Fuel, Trans, Pyro, and Boost Gauges
2.5" leveling kit
Upgraded banjo bolts
Kenwood w back up cam
Alot of prayer
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post #3 of 3 Old 08-16-2010, 06:30 PM
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2006 F-250 XLT Crew Cab
Zoodad mod
BB mod
Coolant Filter
Cat Delete
MBRP 4" Turbo back
SCT
Fuel, Trans, Pyro, and Boost Gauges
2.5" leveling kit
Upgraded banjo bolts
Kenwood w back up cam
Alot of prayer
RZR007 is offline  
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