Exhaust & Intake Systems
Sponsored by:
Sponsored by: Real Truck

2011+ 5.0 Exhaust Specs

Old May 8, 2012 | 02:13 AM
  #1  
SuperCruzin's Avatar
Thread Starter
|
Senior Member
Joined: May 2012
Posts: 147
Likes: 0
From: Erie, PA
2011+ 5.0 Exhaust Specs

I have searched and googled to no avail.

I am looking for the diameter of the various parts of the 5.0 Exhaust system.

From what I gather:

Y-Pipe to resonator is 2.5"
Resonator to Muffler is 2.5"
Muffler exit and tail pipe is 3"

...someone please correct that if it is wrong.

What I am really looking for is the Y-Pipe BEFORE it merges. (from the exhaust manifold to the merge)

Does anyone happen to know what it is?
 
Reply
Old May 8, 2012 | 09:28 AM
  #2  
DarrenWS6's Avatar
Technical Article Contributor
Truck of the Month
Joined: Mar 2008
Posts: 16,436
Likes: 5
From: Mansfield, P.A.
Members here have reported the new 5.0ls have full 3".
 
Reply
Old May 8, 2012 | 09:34 AM
  #3  
TruckGuy24's Avatar
Senior Member
15 Year Member
Liked
Loved
Joined: Jan 2009
Posts: 10,730
Likes: 42
From: Concord, NC
I read on it the other day

http://www.f150forum.com/f70/roush-4...-5-0-a-144258/

The other thing I noticed is that this system is a true 3" all the way through. The OEM resonator gets choked down to 2.75 or 2.5 at one point. In fact, I could slip the mid-pipe from the Roush system over the outside of the OEM resonator pipe.
 
Reply
Old May 8, 2012 | 03:20 PM
  #4  
SuperCruzin's Avatar
Thread Starter
|
Senior Member
Joined: May 2012
Posts: 147
Likes: 0
From: Erie, PA
Thanks TruckGuy24.

That goes along with what I have found. Im not too worried about that section as it is an easy fix at any local exhaust shop.

I would really like to know the pipe diameter of the section of the y-pipe that connects to the manifolds themselves. the section just after the stock cats.
 
Reply
Old May 8, 2012 | 07:54 PM
  #5  
avfrog's Avatar
Senior Member
Joined: Oct 2009
Posts: 6,172
Likes: 1
From: Missouri
What are you planning if I may ask?
 
Reply
Old May 9, 2012 | 12:32 AM
  #6  
SuperCruzin's Avatar
Thread Starter
|
Senior Member
Joined: May 2012
Posts: 147
Likes: 0
From: Erie, PA
Nothing crazy.

If you want the short answer:
Chop off the stock Y, Install a Magnaflow or Flowmaster Race Y with a smooth merge and a full 3" collector, run a 3in 3out round muffler in place of the factory resonator, then mate it up with an OTS 3" Magnaflow Cat-back.

My reasoning (the long answer):
Initially, I was just going to toss the muffler, leave the resonator, throw a Magnaflow Cat-back on there and be done. Really all I wanted was better looks as I cant stand the stock pipe exit and the truck. I think some sound will be ok, but I don't want it rumbling the cabin and I need to keep it down because 99% of our driving is in town. I am past the age of wanting to set off car alarms. That was the plan. Then I started looking more into it and the shortcomings of the rest of the system began to bother me.

I came across some photos that Captain Awesome posted about his factory y-pipe and it looked pretty sad. The y-pipe itself looks to be 2.5" or 2.75" and as someone else said looks more like a "T" than a "Y". There is going to be a lot of turbulence at that point, and being that it is also one of the tight spots along the way, that is somewhat of a double no-no. There are also a couple other points along the way where the system is necked down to 2.75"-2.50" and the more I think about it the more I want to discard it.

The guys on here preach true dual exhaust. 2.25" for towing and 2.50" for top end performance... Hmm, what to do? I got to thinking... I know a single 3" pipe outflows a dual 2.25" system, but its flow falls short of a dual 2.5" system... A nice happy medium? I figure I can live with that.

I want my system mandrel bent and no one locally can do it... that means ill likely be buying a cat-back no matter what as it would take care of the more complex sections... the few remaining bends I can buy prefabbed and have a local shop work them in.

A single 3" with 2 healthy straight through mufflers just looks like a good alternative to a true dual system with half a dozen mufflers trying to keep noise levels down.

The truck is still on order and unless they change my date, I have another 5 weeks to over-analyze and obsess about stupid things like this... I wont make my final decision on what I want to do for sure until I see exactly what everything looks like first hand and how much room I have to work with.
 
Reply
Old May 9, 2012 | 02:10 PM
  #7  
TruckGuy24's Avatar
Senior Member
15 Year Member
Liked
Loved
Joined: Jan 2009
Posts: 10,730
Likes: 42
From: Concord, NC
Why not just do a 3" borla pro xs? Those sound very nice on your trucks
 
Reply
Old May 9, 2012 | 05:34 PM
  #8  
SuperCruzin's Avatar
Thread Starter
|
Senior Member
Joined: May 2012
Posts: 147
Likes: 0
From: Erie, PA
That is just a muffler correct?
 
Reply
Old May 9, 2012 | 05:39 PM
  #9  
TruckGuy24's Avatar
Senior Member
15 Year Member
Liked
Loved
Joined: Jan 2009
Posts: 10,730
Likes: 42
From: Concord, NC
Correct
 
Reply
Old May 9, 2012 | 06:19 PM
  #10  
SuperCruzin's Avatar
Thread Starter
|
Senior Member
Joined: May 2012
Posts: 147
Likes: 0
From: Erie, PA
That would be why.
 
Reply
Old May 9, 2012 | 07:47 PM
  #11  
TruckGuy24's Avatar
Senior Member
15 Year Member
Liked
Loved
Joined: Jan 2009
Posts: 10,730
Likes: 42
From: Concord, NC
Keep your current system but take put muffler and resonator and pit new pipe in. That would work?
 
Reply
Old May 10, 2012 | 09:36 PM
  #12  
SuperCruzin's Avatar
Thread Starter
|
Senior Member
Joined: May 2012
Posts: 147
Likes: 0
From: Erie, PA
I want a raptor style exit
 
Reply
Old May 10, 2012 | 10:24 PM
  #13  
TruckGuy24's Avatar
Senior Member
15 Year Member
Liked
Loved
Joined: Jan 2009
Posts: 10,730
Likes: 42
From: Concord, NC
Twin 4" exit corsa tip is 169 on summit. 3" inlet
 
Reply


Thread Tools
Search this Thread

All times are GMT -4. The time now is 06:56 AM.