Cel code po420

Joined
20 November 2008
Messages
1,033
Location
Chapel Hill, NC
Just wondering if folks who have had this code had to replace a cat,and if anyone has tried the sos high flow ones.the code reader at car quest said it is "catalyst system efficiency below threshold." i searched,and the only thread i found on this code is 8 years old-
http://www.nsxprime.com/forum/showthread.php/63993-Service-code-P0420?highlight=PO420

in the thread,larry bastanza says this code means you need a new cat.larry obviously knows what he's talking about,always appreciate his input,so i'm looking at alternatives.

here are the sos ones-

http://www.scienceofspeed.com/produ...cienceofSpeed/high_flow_catalytic_converters/

i checked some prices,two cats are about $2750 full price oem (ouch), maybe $2000 at an online discount dealer site,and $745 for the sos ones.the choice seems pretty obvious,but i'd love to hear from someone who has the sos ones.
 
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