raced my friends infinity yesterday. went from about 15 mphi got a quick jump and stayed in front the whole time. i didnt pull car lenghts or anything but it was catchin up anytime soon. Its a 2004 so i know its not as quick as the new ones with the dual intake. it was a good time though i have been curious since she bought it. and yes i said she... but she drives it like she stole it haha