Cat Replacement

[manp0899]

So after much deliberation I decided to finally change my catalytic converter. I have been getting the o2 sensor malfunction notice (PO430) for sometime now. I tried seafoam, changing the o2 sensors and it worked but the check engine light will eventually come on. My gas mileage wasn't greatly affected so i figured it would be fine. However, now my gas mileage as reduced I would say 40 miles/tank and just would want to replace it.
I would have to change both Bank1&2 but I don't want to break the bank. Anyone know cheap cats I can purchase? So far this is my cheapest option Amazon.com: Magnaflow 99204HM Universal Catalytic Converter (Non CARB compliant): Automotive

 

[SkyGuy41]

I had to replace both. Stick with OEM cats. Buy once cry once. Cost me $1600 for parts and install (local mechanic). No problems since, approx 3000 miles.

 

[CXS]

If you need to replace the cats and are sure it's not the o2 sensors go with a cut & weld from a competent exhaust shop rather than the dealer's outrageous price. Instead of $1600 it would be more like $300.

 

[fullboogie]

If you need to replace the cats and are sure it's not the o2 sensors go with a cut & weld from a competent exhaust shop rather than the dealer's outrageous price. Instead of $1600 it would be more like $300.

Agreed! You can get good quality Walker or Catcon cats for less than $100 each and have them welded in by the shop. They're every bit as good (and possibly better) than factory cats. I've done this on several cars and never had an issue with these two brands.