Hey Ben, I don't mean to jump in, but your response has me thinking.
My left side is showing a little more blue than the right. just inside the "crease" at the top. Everything seems to sound ok. I do get an occassional puff under my butt, it' happens on rev for downshift if i really snatch it quickly.

Just to re-cap my setup.
06 TBA
Snorkels gone
AI's gone at 300
Modified stock Exhaust
2 3/4 turns out
stock jets etc.

thanx


06BA,-AI,NoBfls,K&NPods,TBS,155/45,2 3/4Out,SidGapPlgs,Wirsnbrs NawImPrityFknFarFrmOkMan