I was out for a drive today when i pulled up behind an M5. We turned onto a large open rd (RT. 252 if anyone is from outside philly) and i turned into the lane next to him at about 20. We both get on it and he pulls me by about 5 car lengths and that is where we stay up through 4 gear. When we finally came up on traffic he slowed down and motioned me to do the same so i followed him to the side of the rd. I pull up along side him and i quote he said " I hope that isn't a stock WRX , cause i have a tubi exhaust and shorter gears and i couldn't get away from u". Im running IC hoses, uppipe, Turboback w/cat it was a good time.