Hey guys i just got my GS 2 months ago and just ran into my first hiccup. My CEL is on with a P0430 Cat efficiency below whatever. Anyway are there any aftermarket performance upgrade catalytic converters available for the GS that might replace all 3? If not how much or where can i expect to pay for a cat minus installation that will bolt right in? I have heard $1500.00 not installed. Then someone told me to go aftermarket but if i go aftermarket i want quality not cheap. Any suggestions? Thanks

 

anyone have any suggestions?