Exhaust: Why do they do it like that? - Ford Truck Enthusiasts Forums

2007 - 2014 Expedition & Navigator 2007, 2008, 2009, 2010, 2011, 2012, 2013 and 2014 Ford Expedition and Lincoln Navigator

Exhaust: Why do they do it like that?

Thread Tools Search this Thread
Old 03-01-2007, 07:03 PM
2001F250Crew2wdPSD 2001F250Crew2wdPSD is offline
Senior User
Thread Starter
Join Date: Dec 2003
Posts: 131
2001F250Crew2wdPSD is starting off with a positive reputation.
Exhaust: Why do they do it like that?

Well, I've seen this on so many other vehicles that I shouldn't be surprised to see it on my new EL.

Exhaust description:

Ford is using a very large cat on each bank which seems better than the old set up of 4 cats. Each cat discharges into a 2-1/2" OD tube, these 2 tubes merge together on the right side near the end of the tranny oil pan. The outlet of the merge is 2-3/4" back to the first joint (flex). Then the "cat back" portion of the exhaust necks down to 2-1/2" into the muffler, out of the muffler at 2-1/2" then bumps back up to 2-3/4".

I think a good exhaust will wake this engine up nicely. I think a system like Magnaflow will work well but may be a bit too loud for a family vehicle. So I may try running either a separate dump tube with a control valve or I may just use the new Aero Exhaust 3030XL with an AR30 for a little more sound deadening.
Reply With Quote

Go Back   Ford Truck Enthusiasts Forums >

2008, 3030xl, aero, expedition

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

All times are GMT -5. The time now is 11:56 AM.

  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: