I live in California and I am trying to pass smog with a p0420 code, My cat is due for a replacement . I can't find anything carb compliant, I have settled to choose rockauto.com. They offer two brand's "Walker" and "Bosel" for the two banks, from research "Walkers", has shitty welding so I guess I'll go with Bosel both are much cheaper than the 700 dollar Magana flow from O Rileys. This is just the discussion of the two banks. I couldn' find anywhere that sells a carb compliant rear 3rd cat so I was debating to get the "Bosel" 2 banks -
https://www.rockauto.com/en/moreinfo.php?pk=10313480&cc=1416451&jsn=__GIP__2__ Bosel 2 Banks
and for the rear cat I was deciding to go with this -
WALKER 3RD CAT
https://www.rockauto.com/en/moreinfo.php?pk=5270316&cc=1416451&jsn=461
now is this bad to combine two brands together should I just go with the walker or go the extra mile go for a 5-year warranty and get Magna flow from the auto part store? please help
https://www.rockauto.com/en/moreinfo.php?pk=10313480&cc=1416451&jsn=__GIP__2__ Bosel 2 Banks
and for the rear cat I was deciding to go with this -
WALKER 3RD CAT
https://www.rockauto.com/en/moreinfo.php?pk=5270316&cc=1416451&jsn=461
now is this bad to combine two brands together should I just go with the walker or go the extra mile go for a 5-year warranty and get Magna flow from the auto part store? please help