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Old Feb 19, 2004 | 09:53 PM
  #1  
JD in TN's Avatar
JD in TN
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From: East Tenn
Question Exhaust question

I have a 2000 Powerstroke and am planning on changing the exhaust to 4". No shop in the immediate area can work with 4" pipe, so I guess I will do it myself. I can get a good deal on a Magnaflow XL exhaust, stainless steel. Has anyone installed this kit? If so, do you like it, and how hard was it to install? This kit comes with a 3 1/2" downpipe. Magnaflow's ad says 3 1/2" is better than 4" on the downpipe. And I was wondering if this is true, or should I try to get a 4" downpipe? Or does it make much difference?
 
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Old Feb 19, 2004 | 10:27 PM
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bender97f250
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From: Northeast,PA
I bought the same exhaust, installation was easy, all necessary hangers were included and the price was great. I purchased my dp from Banks(3.5") I would use the 3.5"dp on your truck also. You might find that the 4" will be snug against the firewall.
 
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Old Feb 20, 2004 | 10:56 PM
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WeWeld
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From: Fillmore Ca
If you are only doing exhaust the 3.5" dp is fine but if you go with an intake and a flip chip go with the 4" dp it will work a little better.

GENE
 
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Old Feb 27, 2004 | 05:28 PM
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bigdieseldav
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From: Abilene TX
There are no clearance issues with the 4"downpipe on the 99+ powerstrokes, fits right in there without a problem, I say go 4". Can't imagine how a 3.5 is better , Good luck!!
 
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Old Feb 29, 2004 | 11:01 PM
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96ford4x4turbodiesel
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From: Gainesville, Texas
ive been told that the 3 1/2" down pipe turned out to have more hp than the 4" This is comming from the guy at HPD (high performance diesel) i just have 3 1/2 down pipe then 5" past the cab then curved to the ground and it sounds and runs great!!!
 
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Old Feb 29, 2004 | 11:44 PM
  #6  
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WeWeld
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From: Fillmore Ca
Originally posted by 96ford4x4turbodiesel
ive been told that the 3 1/2" down pipe turned out to have more hp than the 4" This is comming from the guy at HPD (high performance diesel) i just have 3 1/2 down pipe then 5" past the cab then curved to the ground and it sounds and runs great!!!
The down pipe size has to do with the horsepower you want to make.

GENE
 
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