Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK2 - > Engine Performance/Intakes/Exhausts

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #1  
Old 04-02-2012, 05:21 PM
New Member
 
Join Date: Apr 2012
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
trwolfpack is on a distinguished road
2011/12 Hemi grand cherokee exhaust

Is it worth it to upgrade the stock exhaust on the 2012 hemi grand cherokee 4 x 4 --- what are the real - mpg, trq and hp gains for doing so - and what is the diameter of the stock exhaust - thanks
__________________

__________________
Reply With Quote
  #2  
Old 04-02-2012, 08:26 PM
ckehl2's Avatar
Member
My Jeep: 2012 5.7L WK2
 
Join Date: Jan 2012
Location: Indiana
Posts: 66
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1594
ckehl2 has a reputation beyond reputeckehl2 has a reputation beyond reputeckehl2 has a reputation beyond reputeckehl2 has a reputation beyond reputeckehl2 has a reputation beyond reputeckehl2 has a reputation beyond reputeckehl2 has a reputation beyond reputeckehl2 has a reputation beyond reputeckehl2 has a reputation beyond reputeckehl2 has a reputation beyond reputeckehl2 has a reputation beyond repute
Re: 2011/12 Hemi grand cherokee exhaust

I don't know what the HP, torque or MPG gains are, would depend on what you replaced it with. But the stock exhaust is 2.5" to the ball flanges in the middle, from there it is 2.25" the rest of the way.
__________________

__________________
2012 Hemi Overland
2005 HD Springer Softail Classic
Reply With Quote
  #3  
Old 04-03-2012, 04:54 AM
ColdCase's Avatar
Senior Member
 
Join Date: Apr 2011
Posts: 1,445
Thanks: 0
Thanked 26 Times in 25 Posts
Rep Power: 26449
ColdCase has a reputation beyond reputeColdCase has a reputation beyond reputeColdCase has a reputation beyond reputeColdCase has a reputation beyond reputeColdCase has a reputation beyond reputeColdCase has a reputation beyond reputeColdCase has a reputation beyond reputeColdCase has a reputation beyond reputeColdCase has a reputation beyond reputeColdCase has a reputation beyond reputeColdCase has a reputation beyond repute
Re: 2011/12 Hemi grand cherokee exhaust

Upgrade for the sound. Until a tuner comes out, the performance gains, if any, are not worth the cost (and because it sounds better, it seems to run better).
__________________
Reply With Quote
  #4  
Old 04-03-2012, 05:53 AM
BuckeyeSRT's Avatar
Senior Member
My Jeep: 2012 5.7L WK2
 
Join Date: Mar 2011
Location: Home of the Buckeyes
Posts: 1,573
Thanks: 28
Thanked 26 Times in 26 Posts
Rep Power: 102260
BuckeyeSRT has a reputation beyond reputeBuckeyeSRT has a reputation beyond reputeBuckeyeSRT has a reputation beyond reputeBuckeyeSRT has a reputation beyond reputeBuckeyeSRT has a reputation beyond reputeBuckeyeSRT has a reputation beyond reputeBuckeyeSRT has a reputation beyond reputeBuckeyeSRT has a reputation beyond reputeBuckeyeSRT has a reputation beyond reputeBuckeyeSRT has a reputation beyond reputeBuckeyeSRT has a reputation beyond repute
Re: 2011/12 Hemi grand cherokee exhaust

I would go with an intake first.
__________________
2012 BB Overland Summit
Like my company on Facebook ...please
https://www.facebook.com/TheSimmondsGroup
Twitter @simmondsgroup
Reply With Quote
  #5  
Old 04-03-2012, 10:33 AM
nonopr01's Avatar
Premium Member
My Jeep: 2014 5.7L WK2
 
Join Date: Mar 2012
Location: Puerto Rico
Posts: 442
Thanks: 3
Thanked 9 Times in 8 Posts
Rep Power: 1648
nonopr01 has a reputation beyond reputenonopr01 has a reputation beyond reputenonopr01 has a reputation beyond reputenonopr01 has a reputation beyond reputenonopr01 has a reputation beyond reputenonopr01 has a reputation beyond reputenonopr01 has a reputation beyond reputenonopr01 has a reputation beyond reputenonopr01 has a reputation beyond reputenonopr01 has a reputation beyond reputenonopr01 has a reputation beyond repute
Garage
Re: 2011/12 Hemi grand cherokee exhaust

Bring the Dyno test, NOW!!!
__________________
Reply With Quote
Reply

Thread Tools
Display Modes

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Exhaust for 2011 hemi durango? Kman09JGC 2011+ Dodge Durango-WD 4 02-02-2012 10:18 AM
2011 Jeep® Grand Cherokee Captures 2011 MotorWeek Drivers' Choice Award for Best Larg LJS8510 Grand Cherokee - WK2 - 2 02-09-2011 05:35 PM
2011 Grand Cherokee vs. 2011 Ford Explorer justin1569 Grand Cherokee - WK2 - 186 01-25-2011 05:36 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 07:46 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community