SOS High flow Cats-Anyone tried them?

[robbiedawg]

It appears i need a new rear cat,after having cel code po 420 "catalyst system efficiency below threshold." If so,i'll probably do both but 2 oem ones list for $2750, these sos ones are $745 a pair-

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

my car and exhaust are stock.
i posted this under the cel code and didn't get a response,but figured there would be some people who have these who didn't get the code first.it looks like with these i could save some money and maybe get a few extra horsepower. thanks .

 

[NetViper]

I haven't used the SOS, but I am looking at getting angus high flow. They are a good price too.

 

[Speedy93]

I passed California emissions with the SOS cats. And I'm punched out to a 3.2 with a comptech sc and 550 injectors, headers, exhaust, forged pistons, and .... Shhh don't tell, a AEM ecu. At first it was going to be close but once we got the cats hot it passed with flying colors

 

[robbiedawg]

in nc they only do emissions inspections on cars starting with the 96 model year,so my 95 doesn't have to pass emissions.