Like they been saying, nitrous. But like most things in life just having it aint enough. You got to know how to use it. Same with a drag strip. Have you been down a strip before? Has he? Average Joe will say,"its simple. Light turns green you floor it." Lost already,more like last yellow,leave. You need to know how to use the track. The only way to learn is practice,practice and practice. And dont let the other guy know. Cause he can show up all slick and pretty but if he hasnt been testing and practicing he gonna lose.