Cold Air + Real Exhaust not homemade = MPG? - Ford Powerstroke Diesel Forum
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post #1 of 9 Old 05-14-2009, 04:08 PM Thread Starter
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Cold Air + Real Exhaust not homemade = MPG?

Straight up, will an aftermarket intake IE K&N or better plus a real MBRP 4inch exhaust help a little with mileage?

Yes or no.


I'm doing it either way, just curious.


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00' F250 CCSB Lariat 4x4 - 197k.

285 BFG ATs, 6637 Intake.
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post #2 of 9 Old 05-14-2009, 04:10 PM
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for one, dont use a k&n. they are way bad for our trucks. they let dust and particles by. and yes it will help a little but nothing to brag about. you should get a little more performance too.

05 Single Cab Short Bed
*03 Turbo*Stroked Injectors*AFE Stage 2*Small mouth Intake*SCT With Eric's Extreme Race*4.30 Gear*Best ET 13.5@99MPH*
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post #3 of 9 Old 05-14-2009, 04:13 PM
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Anytime you free up restrictive intakes and exhaust you increase the efficiency of an engine, so you can safely assume that MPG would increase. HOWEVER, you dont want to sacrifice filtering capability for more airflow!

The stock filters on these trucks are rather impressive compared to the majority of manufacturers, and the exhaust isnt terribly restrictive either, if you straight pipe it. The main restriction is the factory cat and muffler.
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post #4 of 9 Old 05-14-2009, 04:19 PM Thread Starter
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Hmm, well my filter is done. Its dirty as hell. Ford wants 78 bucks for another one.


I think Ill just slap an intake on it if I am paying that much. Or can I get an aftermarket filter that flows better for cheaper? I did the Zoo-dad mod just a few days ago.

Oh and my truck is straight piped. Its loud as balls. Honestly I live out of my truck during the week, my windows are down all day and its just too damn loud for me. I wanna go with a real exhaust, not some homemade cut-up stuff.

I was thinking MBRP dual 4inch turbo back? Kind of a go big or go home thing.

00' F250 CCSB Lariat 4x4 - 197k.

285 BFG ATs, 6637 Intake.
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post #5 of 9 Old 05-14-2009, 05:07 PM
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I just took mine on an 1100 mile roadtrip doing 80+ the whole time and it never bothered me much. Do you still have it exiting out the back in the stock location?
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post #6 of 9 Old 05-14-2009, 05:44 PM
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i suggest a S&B intake...alot of ppl includin me seem 2 be usin them...i like mine alot !!!

-Mike-
2006 F-350 Lariat, Supercab, 6.0L, 3.73's...Rhinolined Bed...6 Spd Handshaker...Mag-Hytec Diff. Covers...Smoked Recon Lights...Amsoil oils front 2 back...Optima Yellow Tops...MBRP 5" ST8 Pipe, Turbo Back...Dieselsite Coolant Filter...Amsoil/Injen CAI...SCT SF3 Canned Tunes 4 Now...CFM Intake Manifold and Boost Tube...Blue Spring Upgrade...Edge Insite CTS !!!
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post #7 of 9 Old 05-15-2009, 06:45 AM Thread Starter
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Quote:
Originally Posted by Rubenk View Post
I just took mine on an 1100 mile roadtrip doing 80+ the whole time and it never bothered me much. Do you still have it exiting out the back in the stock location?
Yep stock location, no cat or muffler.


I'm young too and I think its quite loud. I don't want my truck to sound white trash, lot of the dumb kids around straight pipe their gas chevys and it sounds like ***.

00' F250 CCSB Lariat 4x4 - 197k.

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post #8 of 9 Old 05-15-2009, 01:54 PM
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A straight pipe gasser does sound kinda ****ty, but I think our PSD's sound nice cruising around, only obnoxious if you floor it next to a car or something.

Although, when I DO go for a full exhaust system I will seriously consider some sort of performance muffler, as I like being able to sneak around...
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post #9 of 9 Old 05-15-2009, 11:20 PM Thread Starter
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Quote:
Originally Posted by Rubenk View Post
A straight pipe gasser does sound kinda ****ty, but I think our PSD's sound nice cruising around, only obnoxious if you floor it next to a car or something.

Although, when I DO go for a full exhaust system I will seriously consider some sort of performance muffler, as I like being able to sneak around...
Yeah, its just not ask sneaky as I want. I show up to customer houses alot too and I feel I should be quieter for a business thing and not piss off some EPA ****head.

00' F250 CCSB Lariat 4x4 - 197k.

285 BFG ATs, 6637 Intake.
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