i have a 02 spec v, and i keep getting a 0420 fault. i have a greddy cat back, aebs header with high flow cat. i was fine for about 8 months, now i keep getting it every couple of weeks. i reset it all the time. i know its probably the o2 sensor, but i've been thinking about getting rid of my cat so i want to get a mil eliminator to prevent it from ever coming back. does anyone have any info on where to get something like that?