Notices
Modified JK Tech Tech related bulletin board forum regarding subjects such as suspension, tires & wheels, steering, bumpers, skid plates, drive train, cages, on-board air and other useful modifications that will help improve the performance and protection of your Jeep JK Wrangler (Rubicon, Sahara, Unlimited and X) on the trail.

PLEASE DO NOT START SHOW & TELL TYPE THREADS IN THIS FORUM

2012 Exhaust Crossover fix

Thread Tools
 
Old Sep 1, 2011 | 02:17 PM
  #1  
jerrya's Avatar
Thread Starter
JK Newbie
 
Joined: Jul 2011
Posts: 17
Likes: 0
From: Tucson, AZ
Default 2012 Exhaust Crossover fix

I have a 2012, getting a 4.5" AEV lift installed, including Tom Woods drive shafts (among other things).

So here's what my shop (Dixie 4WD in St George UT) did to solve the crossover pipe interference...
1. cut a little more than an inch out of the driver's side just forward of the collector (pls pardon the bad picture...it's the only one I have).
2. welded it back in on the passenger's side forward of the cross-over point.

That moved the cross-over pipe back a little without changing its length.

At full droop, the Tom Woods drive shaft (smaller diameter than stock) clears the pipe by about 1/8".

Click image for larger version

Name:	taken from here.JPG
Views:	334
Size:	31.9 KB
ID:	205533 Click image for larger version

Name:	added here.JPG
Views:	295
Size:	36.9 KB
ID:	205531 Click image for larger version

Name:	clearance with TW DS.JPG
Views:	299
Size:	28.6 KB
ID:	205532
Reply
Old Sep 1, 2011 | 02:33 PM
  #2  
jerrya's Avatar
Thread Starter
JK Newbie
 
Joined: Jul 2011
Posts: 17
Likes: 0
From: Tucson, AZ
Default

Originally Posted by Dutchboy101
Nice fix, but I have a question? Will the exhaust not be in the way when you flex while crossing obstacles?
1/8" is not much room for error. Especially if you haven't lifted your Jeep yet. Once lifted you and have longer CA's and more flexy coils, you will probably hit your exhaust manifold. Correct me if I'm wrong.
This is AFTER the installation of the 4.5" lift (and at full droop).

Last edited by jerrya; Sep 1, 2011 at 02:35 PM.
Reply
Old Sep 1, 2011 | 02:39 PM
  #3  
Dynomax's Avatar
Sponsoring Manufacturer
 
Joined: Jun 2010
Posts: 892
Likes: 2
Default

This is going to be a fun system for the engineers to figure out.
Reply
Old Sep 1, 2011 | 02:53 PM
  #4  
Full-Traction Suspension's Avatar
Former Member
 
Joined: Aug 2006
Posts: 1,824
Likes: 0
From: United States
Default

Originally Posted by Dynomax
This is going to be a fun system for the engineers to figure out.
Isnt the exhaust system routed this way for the best torque?
Reply
Old Sep 1, 2011 | 03:38 PM
  #5  
Dynomax's Avatar
Sponsoring Manufacturer
 
Joined: Jun 2010
Posts: 892
Likes: 2
Default

Originally Posted by Full-Traction Suspension
Isnt the exhaust system routed this way for the best torque?
I haven't talked to the engineers yet, so I don't know. I do like loops in exhausts though.
Reply
Old Apr 12, 2012 | 03:08 PM
  #6  
Craven Moorehead's Avatar
JK Newbie
 
Joined: Apr 2012
Posts: 49
Likes: 0
From: Abilene Texas
Default

Originally Posted by jerrya
I have a 2012, getting a 4.5" AEV lift installed, including Tom Woods drive shafts (among other things).

So here's what my shop (Dixie 4WD in St George UT) did to solve the crossover pipe interference...
1. cut a little more than an inch out of the driver's side just forward of the collector (pls pardon the bad picture...it's the only one I have).
2. welded it back in on the passenger's side forward of the cross-over point.

That moved the cross-over pipe back a little without changing its length.

At full droop, the Tom Woods drive shaft (smaller diameter than stock) clears the pipe by about 1/8".

<img src="https://www.jk-forum.com/forums/attachment.php?attachmentid=205533"/> <img src="https://www.jk-forum.com/forums/attachment.php?attachmentid=205531"/> <img src="https://www.jk-forum.com/forums/attachment.php?attachmentid=205532"/>
I spent 40 bucks at a muffler shop and they did this.

Click image for larger version

Name:	image-308120305.jpg
Views:	152
Size:	50.9 KB
ID:	303150



Click image for larger version

Name:	image-2155158799.jpg
Views:	142
Size:	51.0 KB
ID:	303151
Reply




All times are GMT -8. The time now is 02:28 AM.