anyone have the fastman O2 simms? how did they work for you guys? any CEL's or anything? i have an 01 R/T so i have 3 cats but only 2 o2 sensors right. so i was thinking of doing a "super high flow cat" AKA no cat at al. so it should be as simple as rip out old cats, weld in some pipe, replace o2's with simms, and move on with life.... right? how come i have 3 cats and only 2 o2 sensors? thanks guys!