6.4 Exhaust question - 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 07-26-2010, 05:37 PM Thread Starter
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6.4 Exhaust question

I'm trying to get some parts together for my 6.4 and I am trying to figure out what I should get for exhaust. I plan on running the spartan with an afe stage 2. I'm looking at the flo-pro straight pipe dpf delete exhausts and I don't know what i should get. Should I go with 4'' or 5''? Turbo back or down pipe back?

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2005 ECSB F250 - SCT, MBRP, ARP, FCDP, S&B, Autometer, Swamp's, Recon, JL Audio, MTX, Bushwacker, Westin, XD, Toyo - SOLD
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post #2 of 7 Old 07-26-2010, 05:51 PM
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I have the 4" Pro Flo downpipe back. The 08's have a 4in downpipe already. You will absolutly love the improvement!
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post #3 of 7 Old 07-26-2010, 06:37 PM Thread Starter
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Oh ok i didn't know they already had a 4in downpipe

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post #4 of 7 Old 07-26-2010, 06:45 PM
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i have 4" down pipe with 5" after dpf delete to 7" single stack and LOVE IT

2010 FX4 leveled out with 2" rear blocks, Spartan 250 tune with 5" DPF/CAT delete with 7" single stack. 20" moto metal 950, 35 12.50 graps
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post #5 of 7 Old 07-26-2010, 06:57 PM Thread Starter
Now I'm Strokin6.4Liters
 
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Does it feel like it takes a while to for the turbos to spool up with the 5''?

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post #6 of 7 Old 07-26-2010, 07:29 PM
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I didnt really notice a big difference as far as turbo lag from stock to where my truck is now. its like a guessing game, "how much is this goin to spin once turbos boost up, casue there is a cop right there"

2010 FX4 leveled out with 2" rear blocks, Spartan 250 tune with 5" DPF/CAT delete with 7" single stack. 20" moto metal 950, 35 12.50 graps
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1994 F-250 ext Cab XLT 7.3 idi NA with PSD swap MBRP downpipe 4 exhaust and 6" single stack TS 6 pos tuner 6" suspension lift, 20" welds 36" Iroks

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post #7 of 7 Old 07-26-2010, 07:41 PM
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the DP on the 6.4 is a double wall pipe, outside may be 4" but inside is not, probably more like 3 maybe 3.25"

I would go with a 5" turbo back..let me know if I can help you out.

Adam Brannan

First Coast Diesel Performance


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