2007 Santa Fe Catalytic Convertor
 

I am getting p0430 and have to change my catalytic convertor which i believe is the one under the car.
i asked the dealer the they quoted price of $1000 which i can get for about $750 searching online for the part 289503E140.
when i went to other sites putting my car information, i get a list of parts like WALKER 16513 Ultra Converter and Eastern Catalytic which cost way less than which the dealer part cost.
can someone let me know if these are good and will work without me getting any code?
Thanks

I have never dealt with those companies before and I work for Hyundai so I am partial to OE parts, we have that item for sale here: CONVERTER ASSEMBLY - CATALYTIC made by Hyundai. #289503E140