I have a 2003 is300 with check engine light on with code p0420. I already know my catalytic converter needs to be replaced but the dealership is offering me the OEM part for 3,993$ which I would like to cut the cost in half. Basically I was wondering if anyone knew a replacement just as good as OEM or better. specifically the magnaflow catatlytic converter looks pretty good? Any advice on a good replacement is much appreciated.

 

i have a magnaflow cat that i used for a couple of weeks that i'd sell to you for a good deal, you would need new gaskets however.

 

Crazy question is the cat still available?

 

You can buy the whole pipe on Ebay that includes the cats. The aftermarket headers range from $250 to 350 & the aftermarket mid pipes are in the same price range. I recently bought the Flowmaster header & the Magnaflow mid pipe from Ebay recently for $550 total.