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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.

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Dynomax evolution is on..... And loving it!!!!!

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Old Jun 3, 2014 | 08:27 AM
  #31  
sar2547's Avatar
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From: Orange, CA. United States
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Is thereany bottom end loss with this kit? I have a 2013 jku with 3.73 and 35's.
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Old Jun 3, 2014 | 08:40 AM
  #32  
Dynomax's Avatar
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In general if there is any loss it is minimal. On the 3.8 (we haven't dynoed the 3.6) We saw gains through out the power band.
I

Originally Posted by sar2547
Is there any bottom end loss with this kit? I have a 2013 jku with 3.73 and 35's.
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Old Jun 3, 2014 | 08:43 AM
  #33  
JBADV's Avatar
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From: New England
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This exhaust would not pass state inspection in Vermont .
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Old Jun 3, 2014 | 08:52 AM
  #34  
Dynomax's Avatar
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I wonder why not?
PS I checked out the inspection list, my JK would fail miserably. :(

http://dmv.vermont.gov/sites/dmv/fil...tion_Guide.pdf


Exhaust System:

Check vehicle muffler
Check for after-market uncertified muffler
Check for loose joints or leaking joints
Check for leaks caused by corrosion, seams, or patches on muffler or tailpipe
Check tailpipe end for restrictions
Check for exhaust system modifications allowing excessive noise
Ensure no part of the exhaust system passes through the passenger compartment



Originally Posted by JBADV
This exhaust would not pass state inspection in Vermont .
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Old Jun 3, 2014 | 10:19 AM
  #35  
J1nx93's Avatar
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From: Shady Spring, WV
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I have this exhaust also. Mine drones around 1800 pretty bad. Other than that no complaints.

Sent from my iPhone using JK-Forum
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Old Jun 3, 2014 | 11:05 AM
  #36  
Scvette01's Avatar
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From: St Louis
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Originally Posted by sar2547
Is thereany bottom end loss with this kit? I have a 2013 jku with 3.73 and 35's.

I have same gears and tires on a 2012 unlimited, auto.

I haven't noticed power increase or decrease. MPG might be a tad improved, but hard to tell, cause I have no roof or doors on right now. Whole lotta wind turbulence going on.

Will be closed up for drive to Moab in aug... That will be a test
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Old Jun 3, 2014 | 02:55 PM
  #37  
JBADV's Avatar
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From: New England
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Originally Posted by Dynomax
I wonder why not?
PS I checked out the inspection list, my JK would fail miserably. :(

http://dmv.vermont.gov/sites/dmv/fil...tion_Guide.pdf


Exhaust System:

Check vehicle muffler
Check for after-market uncertified muffler
Check for loose joints or leaking joints
Check for leaks caused by corrosion, seams, or patches on muffler or tailpipe
Check tailpipe end for restrictions
Check for exhaust system modifications allowing excessive noise
Ensure no part of the exhaust system passes through the passenger compartment

It dumps exhaust under the occupant compartment of the vehicle . There is an inspection manual that goes along with the check list , it is explained in the exhaust section of the manual .
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Old Jun 3, 2014 | 04:02 PM
  #38  
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From: Pittsburgh, PA
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Looks like it hangs a bit low. Any of you running it smash it while wheeling? I play in the rocks a lot. I'd hate to buy it and smash it all to hell.

Sent from my Go Go Gadget handheld device.
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Old Jun 3, 2014 | 05:34 PM
  #39  
Dynomax's Avatar
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Gotcha! That is one of the main reason we mark it as for "off-load use". We can't account for every state's law. All of our other systems are legal.

Originally Posted by JBADV
It dumps exhaust under the occupant compartment of the vehicle . There is an inspection manual that goes along with the check list , it is explained in the exhaust section of the manual .
I have wheeled on 35's, 37's and 38's with this system NO issues. I have done Ultimate Adventure, JK Experience and tough trails no dents. Exhaust tips? YEP!

Another picture/angle



Originally Posted by D3ADLY
Looks like it hangs a bit low. Any of you running it smash it while wheeling? I play in the rocks a lot. I'd hate to buy it and smash it all to hell.

Sent from my Go Go Gadget handheld device.
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Old Jun 3, 2014 | 06:53 PM
  #40  
felix zavala's Avatar
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Joined: Feb 2009
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From: Donna, TX
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Part number for an 2008 Jk Unlimited.
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