Go Back   DodgeForum.com > Dodge SUVs > Dodge Durango > 1st Gen Durango
Sign in using an external account
Register Forgot Password?


1st Gen Durango 1998 - 2003 Durango's

Magnaflow Y-Pipe / CAT

Reply
 
 
 
 
Thread Tools Search this Thread
  #1  
Old 10-03-2012, 02:50 PM
Miguelito1961's Avatar
Miguelito1961 Miguelito1961 is offline
Registered User
2003 Dodge Durango
 
Join Date: Aug 2012
Vehicle: 03 Durango 4.7
Location: Pittsburgh, PA
Posts: 18
Default Magnaflow Y-Pipe / CAT

I've read that the Magnaflow Y-Pipe (10778) is a good exhaust upgrade and I'm planning to do this ASAP. I'd like some feedback whether I should also go with a Magnaflow CAT? Heard the high flow CAT might trigger a CAT efficiency code?

Does it make sense to go with the high flow CAT as well?

I did install a Magnaflow muffler into the existing pipe. Will plan on welding the Y-Pipe and CAT into the existing pipe as well.

Thoughts?

Stock 2003 Durango 4.7L 4X4
This ad is not displayed to registered and logged-in members.
Register your free account today and become a member on Dodge Forums!
Reply With Quote
  #2  
Old 10-03-2012, 04:38 PM
that_guy's Avatar
that_guy that_guy is offline
Champion
Garage is empty, add now
 
Join Date: Jan 2011
Vehicle: 99 Durango SLT FT4X4 5.2L Intense Blue
Location: Pittsburgh, PA or Columbia, SC
Posts: 2,913
Default

Not entirely sure on the 4.7, but I know on the 5.2 and 5.9 the oem cat is high flow.
I have a 3" stainless steel Magnaflow cat-back exhaust with a 3.5" polished tip on my 5.2.

I see you're from Pittsburgh too. Where at?
__________________

-Intense Blue '99 Durango SLT 5.2L FT4X4
-Ivy Green '69 Plymouth Satellite 318
Quote:
Somewhere in Kenya, a village is missing its idiot.
Reply With Quote
  #3  
Old 10-03-2012, 05:41 PM
shrpshtr325's Avatar
shrpshtr325 shrpshtr325 is offline
THE ULTI-MOD
Dodge Forum Moderator
2002 Dodge Durango
My Garage
 
Join Date: Jan 2007
Vehicle: 2013 Challenger R/T
Location: Toms River NJ
Posts: 19,061
Send a message via AIM to shrpshtr325
Default

ALL of the stock cats in these trucks are high flow so dont waste your money on that one
__________________


-Phillip's Law: Four-wheel-drive just means getting stuck in more inaccessible places.

bikes?
live in NJ?
REAR WIPER CLUB MEMBER #2

Quote:
altair: I need something that lets me stab people in the face over the internet
Reply With Quote
  #4  
Old 10-03-2012, 10:13 PM
Miguelito1961's Avatar
Miguelito1961 Miguelito1961 is offline
Registered User
2003 Dodge Durango
 
Join Date: Aug 2012
Vehicle: 03 Durango 4.7
Location: Pittsburgh, PA
Posts: 18
Default

Thanks...will stick with the Y-Pipe.

that guy...I'm in Murrysville.
Reply With Quote
  #5  
Old 10-03-2012, 10:18 PM
that_guy's Avatar
that_guy that_guy is offline
Champion
Garage is empty, add now
 
Join Date: Jan 2011
Vehicle: 99 Durango SLT FT4X4 5.2L Intense Blue
Location: Pittsburgh, PA or Columbia, SC
Posts: 2,913
Default

Quote:
Originally Posted by Miguelito1961 View Post
that guy...I'm in Murrysville.
I know right where that is, I'm from west newton
__________________

-Intense Blue '99 Durango SLT 5.2L FT4X4
-Ivy Green '69 Plymouth Satellite 318
Quote:
Somewhere in Kenya, a village is missing its idiot.
Reply With Quote
  #6  
Old 10-11-2012, 02:59 PM
Miguelito1961's Avatar
Miguelito1961 Miguelito1961 is offline
Registered User
2003 Dodge Durango
 
Join Date: Aug 2012
Vehicle: 03 Durango 4.7
Location: Pittsburgh, PA
Posts: 18
Default

2003 Durango 4.7 4X4

I ordered the Y-Pipe (10778) and it arrived last week. I scheduled an appointment with my exhaust guy to have it installed. Several hours after dropping it off I received a call telling me that the part was not going to work. Apparently the stock pipes from the manifold are more like 2" (maybe slightly bigger) and 2.5" going into the CAT. The 10778 is 2.5 in and 3 out, wrong Y-Pipe.

My guy left the truck on the rack so I could see for myself later that day. The Y-Pipe was definitely too big. Modification and fitment would not have been practical or beneficial. The frame was in the way so very little room to fit this 10778 Y-Pipe.

Was debating to get a different Y-Pipe, but what I noticed after looking at it for myself, was that transition of the pipes from the manifold into the stock Y-Pipe didn't look restrictive at all? The pipes maintained their ~2" diameter into the stock Y-Pipe and then transition into 2.5" out. I've concluded that the exhaust flow is as good as it's going to get without increasing pipe diameter from the manifold back. Leaving it alone for now.

Just thought I would pass this along in case any 4.7 Gen 1 owners are thinking of doing this upgrade. Check the pipes for yourself first to see what you have.

Reply With Quote
Old 10-11-2012, 02:59 PM
 
 
 
Reply




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

Join DodgeForum
Advertising

Featured Sponsors
Vendor Directory
Our Sponsors
All times are GMT -4. The time now is 04:38 PM.

Internet Brands, Inc.


Contact Details & Emails