I found out over on DT forums that a guy had installed LT Kooks headers for a SRT8 Jeep onto his truck and they fit perfectly! On 2wd not 4wd just fyi. He did have to make a small "dent" in one pipe to clear the motor mount but it really won't affect anything. You still get the trouble codes for the rear 02 sensor but other than that they bolt right up with no problems. OBX LT's for the Jeep work as well, there is already a group of guys over there planning on ordering some.
Info from the other forum including the link where you can find pics of the install.
SnRusnak if you read this, the truck belongs to Josh from HTC
In case no one knows, this guy runs a 12.2 in the 1/4 in his express RCSB. All motor, tuned and bottle fed
"Installed a set of Kooks On my 2011 Ram last Night...
They are Off a SRT8 Jeep.
Got them Pretty cheap used.
I didnt have to do any modification on the passenger side for fitment except remove a heat shield that coverts the rear of the motor mount.
On the drivers side i had to remove the same shield and dent one of the primary tubes about an 1/8th inch to clear the motor mount.
Well worth it IMO
The small dent will not affect performance at all.
You will need a longer O2 sensor on the drivers side.
On passenger side you will need to cut the zip tie holding the sensor up so it can reach the header
the link won't work unless you fix the obvious (dot), not sure how the Z admins feel about linking to other forums sometimes...