Well I think I found my odd noise (sounded like an exhaust leak all along) Pulled my heat shield off manifold is cracked just about all the way around
B-Replace it with later model toyota header
D-Replace with aftermarket header
Advise, best place to buy?...
NO CEL which me and the toyota/lexus schooled guy at hobby shop thought was odd...
Pix to come shortly.
Im leaning toward toyota header from later model tacoma