Hello,

Toyota quoted me $1800(CAD) for the downpipe-cat converter-O2 sensor flange #17401-62050, mine cracked right at the factory weld and would be difficult to weld it again in place as it is a little thin now, so replacement would be wise at 250,000Km. I know the studs for the O2sensor are garbage on aftermarket stuff but does anyone have any suggestions for a replacement down pipe and Cat, so far all I came up with was Amazon and ebay but in the past I had trouble with aftermarket Converters on my other 3.4L 4R's. I ok with spending extra money but $1800 seemed over the top..