Jeep Cherokee Forum

Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

Putting new exhaust on need so help

Thread Tools
 
Search this Thread
 
Old 02-07-2011, 04:07 PM
  #1  
CF Veteran
Thread Starter
 
jeepxj19's Avatar
 
Join Date: Oct 2010
Location: Salem Nh
Posts: 1,756
Likes: 0
Received 1 Like on 1 Post
Year: 1998
Model: Cherokee
Engine: 4.0
Default
So me and my buddy are putting a new muffler on his rig, he boughy a flowmaster super 44 its offset in and center out. We thought it was reverse flow but on it its stamped inlet on the offset side. We called Flowmaster and someone said absolutely do not reverse it. So my question is, is it rlly that big of an issue if we reverse it or can it cause some mechanical problems
jeepxj19 is offline  
Reply Like
Old 02-07-2011, 04:11 PM
  #2  
Seasoned Member
 
SlackJaw's Avatar
 
Join Date: Jan 2011
Location: New York
Posts: 294
Likes: 0
Received 1 Like on 1 Post
Year: 1996
Model: Cherokee
Engine: 4.0L
Default
the internal baffles are setup to flow in that direction...not sure what would happen if you reverse it, but it can't be good.
SlackJaw is offline  
Reply Like
Old 02-07-2011, 04:12 PM
  #3  
CF Veteran
 
JeepingDan's Avatar
 
Join Date: Apr 2009
Location: CT.
Posts: 18,785
Received 12 Likes on 12 Posts
Year: 88
Engine: 4.0 HO
Default
Could cause a back pressure issue. Just get the right flowmaster.
JeepingDan is offline  
Reply Like
Old 02-07-2011, 04:18 PM
  #4  
CF Veteran
Thread Starter
 
jeepxj19's Avatar
 
Join Date: Oct 2010
Location: Salem Nh
Posts: 1,756
Likes: 0
Received 1 Like on 1 Post
Year: 1998
Model: Cherokee
Engine: 4.0
Default
Originally Posted by JeepingDan
Could cause a back pressure issue. Just get the right flowmaster.
Do u think it would cause rough idle and check engine light?
jeepxj19 is offline  
Reply Like
Old 02-07-2011, 04:22 PM
  #5  
CF Veteran
 
freegdr's Avatar
 
Join Date: Mar 2010
Location: Broward County Fl.
Posts: 47,923
Likes: 0
Received 22 Likes on 22 Posts
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Default
its possible if it reversed the exhaust gassesa re having a hartd time flowing causing un wamted back pressure and high exhaust temps
freegdr is offline  
Reply Like
Old 02-07-2011, 04:22 PM
  #6  
CF Veteran
 
djb383's Avatar
 
Join Date: Nov 2009
Location: The Republic of TEXAS
Posts: 8,172
Likes: 0
Received 14 Likes on 14 Posts
Year: 1998
Model: Cherokee
Engine: 4.0L HO
Default
Not a good idea to reverse a Flowmaster.
djb383 is offline  
Reply Like
Old 02-07-2011, 04:33 PM
  #7  
CF Veteran
Thread Starter
 
jeepxj19's Avatar
 
Join Date: Oct 2010
Location: Salem Nh
Posts: 1,756
Likes: 0
Received 1 Like on 1 Post
Year: 1998
Model: Cherokee
Engine: 4.0
Default
Originally Posted by djb383
Not a good idea to reverse a Flowmaster.
So it would cause problems is what your saying
jeepxj19 is offline  
Reply Like

Trending Topics

Old 02-07-2011, 04:39 PM
  #8  
CF Veteran
 
freegdr's Avatar
 
Join Date: Mar 2010
Location: Broward County Fl.
Posts: 47,923
Likes: 0
Received 22 Likes on 22 Posts
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Default
Originally Posted by jeepxj19
So it would cause problems is what your saying
its going to cause a problem what prob who nos you just dont put them on backwards
freegdr is offline  
Reply Like
Old 02-07-2011, 04:49 PM
  #9  
CF Veteran
 
djb383's Avatar
 
Join Date: Nov 2009
Location: The Republic of TEXAS
Posts: 8,172
Likes: 0
Received 14 Likes on 14 Posts
Year: 1998
Model: Cherokee
Engine: 4.0L HO
Default
Originally Posted by jeepxj19
So it would cause problems is what your saying
That's my opinion, due to the way Flows are constructed internally. U got it from the horse's mouth, FlowMaster, don't reverse it.
djb383 is offline  
Reply Like
Old 02-07-2011, 04:56 PM
  #10  
CF Veteran
Thread Starter
 
jeepxj19's Avatar
 
Join Date: Oct 2010
Location: Salem Nh
Posts: 1,756
Likes: 0
Received 1 Like on 1 Post
Year: 1998
Model: Cherokee
Engine: 4.0
Default
Guess we'll have to change it
Last edited by jeepxj19; 02-07-2011 at 05:00 PM.
jeepxj19 is offline  
Reply Like
Old 02-07-2011, 04:59 PM
  #11  
CF Veteran
 
djb383's Avatar
 
Join Date: Nov 2009
Location: The Republic of TEXAS
Posts: 8,172
Likes: 0
Received 14 Likes on 14 Posts
Year: 1998
Model: Cherokee
Engine: 4.0L HO
Default
Originally Posted by jeepxj19
So it would cause problems is what your saying
WTF?
djb383 is offline  
Reply Like
Old 02-07-2011, 05:00 PM
  #12  
CF Veteran
 
freegdr's Avatar
 
Join Date: Mar 2010
Location: Broward County Fl.
Posts: 47,923
Likes: 0
Received 22 Likes on 22 Posts
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Default
no he said go ahead and put it on backwards the company that made it is lying to you
freegdr is offline  
Reply Like
Old 02-07-2011, 05:01 PM
  #13  
Seasoned Member
 
SlackJaw's Avatar
 
Join Date: Jan 2011
Location: New York
Posts: 294
Likes: 0
Received 1 Like on 1 Post
Year: 1996
Model: Cherokee
Engine: 4.0L
Default
put it on backwards...i want to know what happens.
SlackJaw is offline  
Reply Like
Old 02-07-2011, 05:01 PM
  #14  
CF Veteran
Thread Starter
 
jeepxj19's Avatar
 
Join Date: Oct 2010
Location: Salem Nh
Posts: 1,756
Likes: 0
Received 1 Like on 1 Post
Year: 1998
Model: Cherokee
Engine: 4.0
Default
Sorry im on my phone the app is acting weird
jeepxj19 is offline  
Reply Like
Old 02-07-2011, 05:02 PM
  #15  
CF Veteran
 
freegdr's Avatar
 
Join Date: Mar 2010
Location: Broward County Fl.
Posts: 47,923
Likes: 0
Received 22 Likes on 22 Posts
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Default
Originally Posted by djb383
WTF?
so your saying you dont get it either
freegdr is offline  
Reply Like



Advanced Search
Quick Reply: Putting new exhaust on need so help


Reply Closed Thread Share

All times are GMT -5. The time now is 08:44 AM.