Jeep I6 dualexhaust question - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > General Jeep Forums > Jeep Builds > Jeep I6 dualexhaust question

Rough Country Lift Kits and Parts!XJ Rail Sale!The Ruffstuff NOT Universal 4 Link Kit!

Reply
Unread 11-16-2014, 12:41 AM   #1
JeepxjLife
Registered User
 
Join Date: Nov 2014
Location: Regina, Saskatchewan
Posts: 5
Jeep I6 dualexhaust question

Was looking online at the pacesetter exhaust manifold for the 4.0 it splits the pipe 3 cylinders per pipe then Y pipe into single again if I could make true duals off the manifold would I be losing too much back pressure does the 4.0 need the back pressure ? Or should I go with most flow possible ?

JeepxjLife is offline   Reply With Quote Quick reply to this message
Unread 11-16-2014, 12:48 AM   #2
baktie_91YJ
Registered User
1991 YJ Wrangler 
 
Join Date: Sep 2013
Location: Oxford, CT
Posts: 103
You need a 99+ computer to do this, as it has two O2 upstream sensors. A 4.0 with only one upstream O2 will not be able to do this. To answer the backpressure question, you can still use mufflers/catalytic converters to have the same amount of backpressure, but this mod would be very useful for street/high flow use
baktie_91YJ is offline   Reply With Quote Quick reply to this message
Unread 11-16-2014, 12:59 AM   #3
JeepxjLife
Registered User
 
Join Date: Nov 2014
Location: Regina, Saskatchewan
Posts: 5
It's on a 94 xj the pacesetter exhaust manifold has the first upstream o2 on the rear part at the top of the manifold only on the one side and the down stream one right at the y pipe back into the single would a nice x pipe with the o2 in the middle of it work in place of the y pipe ?
JeepxjLife is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Thread Tools






Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.