Just wanted to post for those who have mods. I have a 92 with comptech intake, headers, exhaust and high flow cats. I replaced the spark plugs with platinum plugs and put on new 02 sensors. I have 174,000 mi. A week before I had put in techron injector cleaner, ran the tank down and filled with fresh fuel and about 2 miles prior to the smog station I ran the car hard in 2nd gear and left the car running at the station. I didn't know if I'd pass because of the high flow cats but I passed with ease. Just to let those who live in sacramento and surrounding area's that the "smog and go" on the corner of sunrise and fair oaks is a high end smog station that smogs premium cars...:wink: Can't wait for my SC from driving ambitions....:smile: