Notices
1994.5 - 1997 7.3L Power Stroke Diesel  

Exhaust size?

Thread Tools
 
Search this Thread
 
Old Oct 20, 2011 | 12:50 PM
  #1  
79OldBone's Avatar
79OldBone
Thread Starter
|
Tuned
Joined: Sep 2011
Posts: 416
Likes: 0
Exhaust size?

Will I be hurting anything going from 3" all the way to the stack kit up to 5" vs. doing 4" after my 3" down pipe to the stack kit? Are there gains/losses with going one or the other?

I'll only be running stage 1 injectors and a custom tune eventually. For now its just the 6pos ts tune with stock injectors.
 
Reply
Old Oct 20, 2011 | 01:46 PM
  #2  
fordpride's Avatar
fordpride
Post Fiend
Joined: Dec 2009
Posts: 15,505
Likes: 18
From: Livoina,La
I would go to 4". The stock exhaust is 3 1/2" so you would be down grading at 3"
 
Reply
Old Oct 20, 2011 | 04:53 PM
  #3  
JamesHajek's Avatar
JamesHajek
Postmaster
Joined: Jun 2009
Posts: 2,566
Likes: 1
From: Monroe/Ellensburg, WA
It won't hurt you... I would personally open it up but if you think about it the stock pipe is 3 1/2" but only after the cat which is pretty close to where you will be getting up through the bed anyways...

Long as you get rid of the flat downpipe, i think it won't really matter what you do for that couple of feet after that to the stacks...
 
Reply
Old Oct 21, 2011 | 09:41 PM
  #4  
jg96powerstroker's Avatar
jg96powerstroker
Posting Guru
Joined: Sep 2010
Posts: 1,166
Likes: 1
From: Phill Mo
Club FTE Silver Member

this is mu 5in cat delet hooks right up to my 3in dpthan in to 5in elbow, up threw the bedin to 5in t pipe, ( 2 5in elbows with backs cut out and weilded togather)in to 2 6in miter cut coal rollers lol
 
Reply
Old Oct 23, 2011 | 09:17 PM
  #5  
79OldBone's Avatar
79OldBone
Thread Starter
|
Tuned
Joined: Sep 2011
Posts: 416
Likes: 0
I got it. I just did 4" after the down pipe to 5" stacks. someone already had stacks in the bed tho and the hole is kinda back to far so it doesnt sit nice against the bed. Gonna have to oblong the hole some
 
Reply
Old Dec 17, 2011 | 03:05 PM
  #6  
bleeds blue's Avatar
bleeds blue
More Turbo
Veteran: Army
20 Year Member
Liked
Joined: Aug 2002
Posts: 583
Likes: 46
From: Utah
JG96. Where did you get a 5" cat delete pipe from? I've only found the diamond eye one.
 
Reply
Old Dec 17, 2011 | 04:16 PM
  #7  
jg96powerstroker's Avatar
jg96powerstroker
Posting Guru
Joined: Sep 2010
Posts: 1,166
Likes: 1
From: Phill Mo
Club FTE Silver Member

Originally Posted by bleeds blue
JG96. Where did you get a 5" cat delete pipe from? I've only found the diamond eye one.
not sure if it? A dimond eye or not... But i got it from ebay.... they listed 3in and 4in aswell
 
Reply
Old Dec 17, 2011 | 06:43 PM
  #8  
disco biscuit's Avatar
disco biscuit
Senior User
Joined: Oct 2011
Posts: 108
Likes: 0
Jpg96...That truck makes me like stacks. With that sticker and sittin low on the cab. I usually hate em. I seen a guy at work today with stacks so high i dont know how it fits under powerlines.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-1

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
story-2

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-3

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-4

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-5

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-6

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-7

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-8

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-9

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
Old Dec 17, 2011 | 06:51 PM
  #9  
jg96powerstroker's Avatar
jg96powerstroker
Posting Guru
Joined: Sep 2010
Posts: 1,166
Likes: 1
From: Phill Mo
Club FTE Silver Member

Originally Posted by disco biscuit
Jpg96...That truck makes me like stacks. With that sticker and sittin low on the cab. I usually hate em. I seen a guy at work today with stacks so high i dont know how it fits under powerlines.
lol thanks man.... I no was the same way! I hate a big 8 or 10 in stack 6 foot tall! My stacks ar fully custom and i made them to fit my truck.... From the front you cant even tell i have them ... The top of the moter cut is flush with top of the cab i think it looks nice and clean
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
JauntyBishop
1987 - 1996 F150 & Larger F-Series Trucks
2
Mar 17, 2026 10:08 PM
meborder
Explorer, Sport Trac, Mountaineer & Aviator
3
Jun 6, 2012 06:39 AM
Otahyoni
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
14
Mar 1, 2010 04:20 PM
bridge
2004 - 2008 F150
34
Aug 1, 2009 05:28 PM
05BHD
6.0L Power Stroke Diesel
15
Oct 12, 2008 01:01 PM




All times are GMT -5. The time now is 09:30 AM.

story-0
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-1
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-2
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-3
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-4
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-5
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-6
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-7
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-8
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-9
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE