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6.4L Performance Parts Discussion What has or has not worked for you?

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post #1 of 6 Old 02-18-2011, 08:51 PM Thread Starter
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MPG/exhaust

I dont know if this has been covered or if there is even a difference but figured I would ask before buying. Is there any MPG or power improvement between a 4" or 5" exhaust? I'm planning to buy the H&S mini maxx and running the tunes that come on it. So what would be better for me?

2008 F250 CC Fx4
2.5" Leveling Kit
35x12.5x20 Toyo Open Country M/T
H&S Mini Maxx
5" Flo-Pro Exhaust with 6" MBRP tip
S&B Intake
Mishimoto Radiator
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post #2 of 6 Old 02-18-2011, 09:01 PM
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I believe you won't see any milage differance, since they will both have the same downpipe. I'm goin with the 5" exhaust

Allen
1999.5 F-350 7.3, six-speeed

If Canada was that great, it would be a state...

When seconds count, the police are just minutes away.

"Those who would give up essential liberty to purchase a little temporary safety deserve neither liberty nor safety." -Benjamin Franklin

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post #3 of 6 Old 02-19-2011, 05:46 AM
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08 f350 6" lift 37" tires ...stock 8mpg ....5" no muffler cts s/b intake 15mpg hwy 12 to 13 city ......my buddy has the same truck but with 4" no muffler and he gets the same
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post #4 of 6 Old 02-19-2011, 05:47 AM
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p.s the 5" sounds crazy on there i love it
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post #5 of 6 Old 02-19-2011, 09:41 PM Thread Starter
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Ok, so the H&S mini max, 5" flo-pro, and S&B are on the way. Any tips or pointers on the install? All help is appreciated..

2008 F250 CC Fx4
2.5" Leveling Kit
35x12.5x20 Toyo Open Country M/T
H&S Mini Maxx
5" Flo-Pro Exhaust with 6" MBRP tip
S&B Intake
Mishimoto Radiator
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post #6 of 6 Old 02-19-2011, 09:47 PM
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Rip and tear...oh.

Be careful not to break anything so if you have to put your stock setup back on for warrenty issues then you still can.

Allen
1999.5 F-350 7.3, six-speeed

If Canada was that great, it would be a state...

When seconds count, the police are just minutes away.

"Those who would give up essential liberty to purchase a little temporary safety deserve neither liberty nor safety." -Benjamin Franklin

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