Ok i need some help/ opinions - Ford Powerstroke Diesel Forum
6.4L Performance Parts Discussion What has or has not worked for you?

 
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post #1 of 7 Old 04-25-2014, 05:02 AM Thread Starter
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Ok i need some help/ opinions

So I'm looking to do the exhaust on my truck I already deleted the doc/ dpf I was wondering should I do 5 inch dpf back exhaust or just do 5 inch turbo back
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post #2 of 7 Old 04-25-2014, 06:19 AM
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i would to DPF back if you already have dpf delete pipe. wont take you long to do at all. the downpipe on these 6.4 trucks is known to be a complete P.I.T.A. to change out. its best to do is you ever have the cab off. in the meantime i would suggest just doing dpf back. i did downpipe back on my truck and it only took me an hour and some change to do it all.

2009 F-250 Lariat FX4
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-FLO-PRO 4" downpipe back with 6" mbrp tip
-Sinister EGR delete
-S&B intake
-H&S Mini Maxx, MCC tuned
-LED headlights
-20x12 fuel mavericks
-305/50 420's
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post #3 of 7 Old 04-25-2014, 07:18 AM
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Turbo back ( spools better, less restrictive, egt's ) would be best, 4" downpipe - 5" exhaust if I were to do it over. They say 4" is sufficient enough & 5" is more for performance if any.. Changing downpipe is simple by just disconnecting everything & dropping downpipe as if it were to come out bottom of truck & from that point sawzall it out w/12" blade. I wish I would have added my downpipe b4 installing my exhaust the 1st time.

I believe I hear dpf back is just for looks? Good luck, Jayson.

08 F250 6.4L
CcSb Lariat 3.73
5200lbs springs, rear blocks removed, Nitto Grapplers
aFe Mag Force II Si pro 5R w/modded box
H&S MiniMax/Mcc & Gearhead tunes w/Blendmount
aFe Mach Force XP 4" Exhaust w/downpipe
Custom-Diesel Deleted, H&s wastegate w/Intake Elbow & CAC pipe, MPD Ccv/Oil fill mod, Alradco intercooler,
SD Coolant filtration/ CAT ELC...
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post #4 of 7 Old 04-25-2014, 08:36 AM Thread Starter
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Ok so I guess I'll probably just spend the money and get the 5 inch turbo back I just didn't know if a dpf back would be good enough or not
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post #5 of 7 Old 04-25-2014, 09:34 AM
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FYI the biggest down pipe you can get is 4"

08 F350 cc/sb 4X4
h&s minimaxx, 5" flo pro, 4" down pipe, no limit cold air intake, dirty diesel EGR delete with intake elbow, 6.0 exhaust manifolds, custom up pipes, ported intake manifold, Apex 71mm LP turbo, Rudy's cold side pipe, diesel site coolant and transmission filter, diesel site intercooler boots, ccv mod, bilstein shocks, gogo dd solenoid, HID lights, Airdog II 165, PMF traction bars, PMF drag link, moshimoto aluminum radiator
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post #6 of 7 Old 04-25-2014, 11:39 AM Thread Starter
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I know it's just easier saying 5 inch turbo back instead of 4 inch downpipe 5 inch downpipe back
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post #7 of 7 Old 04-25-2014, 11:46 AM
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Gotcha. Just making sure

08 F350 cc/sb 4X4
h&s minimaxx, 5" flo pro, 4" down pipe, no limit cold air intake, dirty diesel EGR delete with intake elbow, 6.0 exhaust manifolds, custom up pipes, ported intake manifold, Apex 71mm LP turbo, Rudy's cold side pipe, diesel site coolant and transmission filter, diesel site intercooler boots, ccv mod, bilstein shocks, gogo dd solenoid, HID lights, Airdog II 165, PMF traction bars, PMF drag link, moshimoto aluminum radiator
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