Well, last week I took my roommate up to Dallas to pick up his new car. It was a cira 99 9-3 Viggen. Of course I can take him off the line and maybe up until 80 mph. Anyways, driving home late at night, we decide to test our high end power. he counts down to three and punches the Viggen. I downshift into 4th from 75mph. Already he is pulling on my very hard. I couldn't catch up to him. We shut it down once he reached 115mph and I shut down at 120mph. I called him on the cell phone and asked if he downshifted. He said no and can probably pull on Corvettes. Anything can do to make my top end power stronger?