Well, Catted UEL headers and 3" catted & resonated OP/DP arrived. Threw them on last weekend. Sounds amazing... although a bit too loud for my tastes (this is my daily driver). Going to put the factory OP/DP back on this weekend but leave JDL headers installed and see if it helps. Plan to Dyno with JDL pipes and with OEM... I'll share results.
One additional note, the 3" OP vibrates against the lower sway bar when driving, which is another reason I'm swapping back. Maybe 3" is too large to fit without other mods... Not sure.
Video below. The sigh at the end is because I love the sound, but know I have to take part off because it's just too loud. I have 3" Perrin cat-back exhaust btw.
https://vimeo.com/114729260