I've got an 03 Sedan that's totally stock, but fully broken in. I ran a new silver SI (2.0ltr), we probably put out within 20hp to the wheels and he's 300lbs lighter. We were on the I5 going south and did a few 70-110 runs just following each other, the one time we opened up I was about 4 or so cars back and stuck in 4th at 75-80...not until 140+ did I pass about 2-3mph faster and still going. We did another longer run and while he would get an initial jump I could always start to reel things in within a few MPH. He was lowered and not sure if the exhaust was stock or not (I know they come from the factory with cool tips), but I could totally hear an intake when he got on it. It kinda looks like that new si could have made it to 150 given enough time. I basically out torqued him, otherwise it would have been much, much closer, and it wasnt easy to pass him.