A question about exhaust - Ford Powerstroke Diesel Forum

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post #1 of 14 Old 05-07-2009, 05:03 PM Thread Starter
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A question about exhaust

I have a question about my exhaust....How can I tell if its a custom setup? What I mean is,do any of the companys stamp the pipes or anything.I haven't had my truck long and I only looked up under it breifly.I did notice the muffler and cat are gone,but I don't remember if it was a hack and weld job or looked clean.I drive a tow truck and when I get home it's usally late so I don't really get to mess with it much.I will be checking it out bumper to bumper thoroughly this weekend so I wanted to know what to look for(if anything).It obviously sounds diffrent from my buddies stock ones but I don't want to spend $600 on some stuff I already have,LOL. Don't flame me to bad,I'm new to Diesel performance and learning little by little as I go.Thanks for any advice you can add.
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post #2 of 14 Old 05-07-2009, 05:12 PM
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one thing i would check for is the diameter of the pipe, if its 3.5" its stock, anything over that is aftermarket, look at your downpipe from your turbo as well and see if it has unnecessary bends and kinks in it or if its relatively straight

2004 F-250 6.0L FX4

-ARP Headstuds
- AirDog II
- Swamps 48v FICM + Atlas 40
- 4" turbo back w/ single 6" Mitre Cut stack
- AFE Stage II Intake
- EGR Delete
- blue spring, and other updated goodies.
- Coolant Filter
-CAT ELC EC-1 Coolant


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post #3 of 14 Old 05-07-2009, 05:14 PM
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measure it, stock is 3.5" aftermarket is usualy 4-5"

03 F-250 Lariat Crew Cab SB 6.0L Auto 4x4
5" exhaust, AFE intake, Blue spring mod, EGR Delete, 58v FICM, Warren 175/75 injectors, Powermax Turbo,
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post #4 of 14 Old 05-07-2009, 05:23 PM Thread Starter
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Will do.Thanks. Also,if I do end up replacing it, will it hurt to go with 5" inch instead of 4"? The only mods (performance wise)I'm going to do to it are an air intake,dp chip,and exhaust.Will 5" be overkill?

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post #5 of 14 Old 05-07-2009, 05:29 PM
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you might notice slightly cooler egt's and a slightly deeper tone with 5" but nothing worth paying the extra money for, unless your going for a high hp application, which your not, so 4" will be plenty.

2004 F-250 6.0L FX4

-ARP Headstuds
- AirDog II
- Swamps 48v FICM + Atlas 40
- 4" turbo back w/ single 6" Mitre Cut stack
- AFE Stage II Intake
- EGR Delete
- blue spring, and other updated goodies.
- Coolant Filter
-CAT ELC EC-1 Coolant


Tunes From:Vivian @ Quick Tricks, Inc.
-Looney Wild
-Looney
-Agressive Tow
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post #6 of 14 Old 05-07-2009, 05:33 PM
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If your truck is a 03 7.3 like in your sig with an auto it didn't come with a cat from the factory.
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post #7 of 14 Old 05-07-2009, 05:42 PM
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What is the stock for an 02?

I measured the pipe and it is 5 inch diameter.
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post #8 of 14 Old 05-07-2009, 05:44 PM
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stock exhaust is gonna be same size as the 03, 3.5", and you shouldnt have a cat either, easiest thing to do is get under the truck and look.

2004 F-250 6.0L FX4

-ARP Headstuds
- AirDog II
- Swamps 48v FICM + Atlas 40
- 4" turbo back w/ single 6" Mitre Cut stack
- AFE Stage II Intake
- EGR Delete
- blue spring, and other updated goodies.
- Coolant Filter
-CAT ELC EC-1 Coolant


Tunes From:Vivian @ Quick Tricks, Inc.
-Looney Wild
-Looney
-Agressive Tow
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post #9 of 14 Old 05-07-2009, 05:45 PM
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aftermarket

Early 1999 F250
Ext Cab Swb
Foil Delete
Dyi intake
5" dp back exhaust
37" boggers/ leveling kit
AD injectors
DI custom 4 pos. chip
Big dreams on a 20 yr olds budget
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post #10 of 14 Old 05-07-2009, 05:48 PM
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from the looks of that pic you def have an aftermarket exhaust!

1999.5 Ford F-250 Powerstroke
7.3 Powerstroke Diesel
4" Turbo Back MBRP with 6" Tip Straight Piped!
DIY Intake
Isspro Gauges
Diesel Site Coolant Filter
TW 6 Position Chip
2.5 Inch Leveling Kit
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