I am going to change out the cats on my car. It's a 2002 A4 3.0 Quattro. Anyone have any tips or advice. I have a repair manual. Haven't been able to find anything on YouTube. Is it a crazy sounding as the repair manual is making it sound? Thanks

 

on a 3.0 ive heard its a real pain to swap. Might check on audiworld or audizine if anyone has a diy. I forone have never seen one.

 

Thanks

 

its a huge pain. removing the o2 sensors and the nut on the top of the cat is hard to get to. unplug the sensors and try n get it from the top. lmk if you have any more questions.