are they all the same part#'s? It seems my Bank 1 is shot (P0420). Can someone point me to a diagram to where it's exactly located? Thanks in advance.

Any recs on an highflow cat?

 

bank one is the rear of the engine. its like a cover with the spark plugs in it (basically right below where the strut bar is). the 3g tl's have 3 cats. and codes sometimes come up it you have a leak, bad gas or a few other things.

 

Hows it accessible, from the bottom? Any diagrams? Are they all the same size/part#

sorry to be a pest...thanks

 

which one are you trying to access? bank1? i assume that's the one in front located near your radiator fan. you can clearly see it standing in front of the car looking straight down and to the left of your coolant res tank. you'll see your o2 sensor on top of it.

 

ok thanks bro!

 

Bank 1 is the firewall side, same side as #1 cylinder.

 

Bought the rv6 High flow pre-cats.

Thanks everybody