Full Exhaust or DPF/CAT Delete? - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 03-09-2011, 11:55 AM Thread Starter
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Full Exhaust or DPF/CAT Delete?

Im sure this has been asked before. Im looking at deleting the DPF/CAT however Im in one of those lucky states that requires annual smog/visual inspections (sniffed and visual inspection ensuring all ome emission equipment is there). My question is in your opinions should I get a full straight exhaust or just the DPF/CAT Delete pipe? I'm going to have to take it off and on each year for the inspection. Is it hard to take off and put on the full exhaust (I have a Crew Cab Long bed)? I crawled under the truck and saw that most of the exhaust brackets are bolted on. The only bracket that appears to be any trouble is the bracket that is pressed into the crossmember just below the center of the bed. Will I see any sound improvement w/ full 4" exhaust over just the delete pipe? Any opinions?

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2008 Ford F-350
6.4L Power Stroke
Crew Cab Long Bed
Buck Stop Bumper w/
WARN 9500 lbs. Winch
H&S Mini Maxx w/ homemade mount
5" Flo-Pro DPB exhaust w/ muffler
Bilstein 5100s Shocks
AFe Stage II Magnum Force Intake
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post #2 of 4 Old 03-09-2011, 12:13 PM
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Originally Posted by NVHunter83 View Post
Im sure this has been asked before. Im looking at deleting the DPF/CAT however Im in one of those lucky states that requires annual smog/visual inspections (sniffed and visual inspection ensuring all ome emission equipment is there). My question is in your opinions should I get a full straight exhaust or just the DPF/CAT Delete pipe? I'm going to have to take it off and on each year for the inspection. Is it hard to take off and put on the full exhaust (I have a Crew Cab Long bed)? I crawled under the truck and saw that most of the exhaust brackets are bolted on. The only bracket that appears to be any trouble is the bracket that is pressed into the crossmember just below the center of the bed. Will I see any sound improvement w/ full 4" exhaust over just the delete pipe? Any opinions?

Thanks
The 5" downpipe into the 4" dpf/doc delete back is pretty optimal for the exhaust. If you could get it registered outside washoe county , another county where they dont smog would help with the time and toil. Do they smog in Winnemucca ? Battle Mtn ? ect
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post #3 of 4 Old 03-09-2011, 12:34 PM Thread Starter
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They only smog in Washoe County mainly in the Truckee Meadows up to about Pyramid Lake. Past Pyramid to the north (Grelach) you don't have to smog. This was an idea too.

2008 Ford F-350
6.4L Power Stroke
Crew Cab Long Bed
Buck Stop Bumper w/
WARN 9500 lbs. Winch
H&S Mini Maxx w/ homemade mount
5" Flo-Pro DPB exhaust w/ muffler
Bilstein 5100s Shocks
AFe Stage II Magnum Force Intake
NVHunter83 is offline  
post #4 of 4 Old 03-09-2011, 01:00 PM
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Originally Posted by NVHunter83 View Post
They only smog in Washoe County mainly in the Truckee Meadows up to about Pyramid Lake. Past Pyramid to the north (Grelach) you don't have to smog. This was an idea too.
I dont think you should worry about the DPF/Doc delete at all, if you can rely on getting your registration in a no smog County.
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