Hey all, I am a very happy and new owner of a 2001 Sequoia 4wd with 202k miles. So far, I have done timing belt (Toyota did it yesterday), lower ball joints, and all new front brakes with pads/rotors. The Cats were stolen off of this vehicle, so I am getting those done today or tomorrow. General question...is it Delphi or Densoi I always want to use for parts? I am finding O2 sensors by both companies, same price range. I am also looking to get 2 Magnaflow CATs welded in today. Any issue with those or do I really need to drop the major coin for OEM? Thanks. I'll put u pa few photos in a bit.