P/N 17263 2.5" I/O 6" round 20" overall.

So our muffler we use is about a 5-6 out of 10, you will hear it when you get on it and there can be some drone. But for me it is no worse than the 37's I have that scream.
In regards to back pressure you will see a little loss but throughout the power band (on other JK systems) we saw gains....

 

I'm really liking the sound of your systems, the one I'm looking at I've seen people call it the rock crawler system, but I'm not sure which part number it is.. I'm lookin at the 17267 one

 

what year and how many doors? Let me know! Thanks!

 

I have the dynomax rock crawler , it dumps before the rear axle. It is slightly raspy when the jeep is cold. Once the Jeep warms up it sounds real nice, I get compliments on how it sounds all the time. No complaints about drone either like a lot of other people have mentioned with this system. I bought it when there was a $50 rebate so cost was spot on too.

 

Get the Magnaflow exhaust. I love it!

 

dont suppose anybody has a sound-clip of this type of set up?

 

Mbrp offroad exhaust good sound and clearance

 

Gibson sounds really good. Aggressive but not obnoxious at all.

http://www.youtube.com/watch?v=ZdTurjRd3t0

 

I went with a Banks System (may have been called "Stinger"??)
Banks CAI, a TBS, and the Banks "Monster" exhaust - works well together and sounds great IMO. Not too loud, decent throaty sound for a V6 w/a nice little burble coming off the throttle - I'm very pleased with it

 

I went with the Flowmaster 942542 40 Series Delta Flow Muffler after some looking around on youtube trying to get an idea on what it would sound like. Got a real great sound for less then 100 dollars. Its on the louder side of the scale, and theres a little bit of drone on the highway, but it can be controlled pretty well with some throttle feathering.

Sound clip: http://www.youtube.com/watch?v=DqhEDHbuF10