no because when i compare my runs with and without co2 1/4 dosent change only my eight mile dunno might be how the car shifts it is an auto but thats what happened with it its not like im saying i went 9.60 and it went down 2 a 9.40 it was a 9.70 on a hot day to a 9.63 in the eight but as for top end in the quater it ran the same with and without its not a huge jump.
and thats just on motor my supercharger is not in my car yet so im not to sure how it will be