Dynomax

Evolution Competition system for a 4 door 2007-11 is P/N 39516.
Rebate info too:
DynoMax® Performance Exhaust Spring Promotion

fitchottie

Any one get condensation at the joints. I have tightened everything down as tight as it will go but i still get water drops everytime I start up, and from the tip. I also hear a slight wind noise for a little then it goes away.

When I called the local exhaust shops they said it sounds like an exhaust leak.

Dynomax

Got and responded to your PM. I agree probably a leak on the clamp.

Vladimer

So if I wanted to get this running on my 2 door... whats the part number for the muffler? Do I need the kit? or can I just cut the exhaust and clamp the muffler under the driver side?

mtngoat64

Does the manufacture talk about any changes in emissions. Need annual emissions testing here in MD and wondering if this system will increase emissions and cause a failed inspection. Any info you have would be helpful. Thanks. Would like to add to my JKU.

Dynomax

The muffler used in the this system is P/N 17263

There should be no noticeable increase in emissions. Now it may fail inspection, I don't know what MD's law is in regards to pre dumps.
Going off of this link, it should be OK, but I am not an expert on MD law.

Maryland Lift Laws | Vehicle Modification Rules

supdoggen

Does anyone know how this muffler sounds WITH the stock resonator?

Dynomax

A bit louder than with that monster in the back, so about a 3-4.
This set up happens often on the 2012-.

mtngoat64

Thanks for the info and link. I appreciate it.

THUMPER450

Just installed mine. Had to cut the intermediate pipe , plus trim the evap cover in order to bolt the supplied hanger. Other than than fit was good.
2012 jk 4 door. Paired it with a AFE cold air intake. This thing sounds sweet! Time for some test mileage.