Hey guys, for the month and a half I've owned my lude, I have been trying pass inspection, while I passed safety I'm like 600 counts of NOx over the allowed limit as well as like .04 of the CO2 allowed. The NOx I'm under the impression relates to the EGR systems, while I took out the EGR valve and cleaned it out, I'm still about 300 counts over the limit. What can I do to get it into safe emissions? Also, It could be cat converter right? Are there any good performance exhausts that come with a cat that would fit well on my 92 SI lude. Or am I going to replace the stock converter? I know very littler about exhaust systems so lay on some knowledge!

Thanks guys