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6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

4" vs 5" Straight Pipe

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Old Jul 2, 2015 | 08:39 PM
  #16  
acf6's Avatar
acf6
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Joined: Aug 2010
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From: Manchester, CT
Club FTE Silver Member

i believe 5" MBRP still come with 3.5" DP... either way, i cant get my 3.5" DP to stop rubbing

and ive had both 4 and 5" for a good amount of time, and 5" sounds so much deeper. Absolutely love it compared to 4"
 
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Old Jul 3, 2015 | 10:12 PM
  #17  
kevin kaiser's Avatar
kevin kaiser
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Joined: Jun 2015
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Got 4in straight pipe. No cat no muffler into 4in duals. Sounds great, just real loud. Want to go with 5in from down pipe back. And dump it in front of right drive tire.
 
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