I was racing my friends 03 Si hatch, he has a full cat-back exhaust and cold air intk. We were going about 40 i was in 2nd and he downed it first and right after that i followed. I caught up to him and pulled a little so his front was at my mirror and we went into 3rd and i wasnt pulling anymore and we were pretty even. when we shut off at about 100 his bumper was right on my tail. I am disappointed. Has anyone else raced a Si before? This gets me worried.