I am thinking of building a 2008 cobalt 2.2 auto. for stock classes. Does anybody on this fourm run one? I ran the car in all oem trim best et 16.30@ 84.20 with k&n filter in stock air filter housing and some tuning ( by myself ) with hp tuner software went 15.89 @ 86.87 ! Ran out of testing time as the tracks in the northeast are all closed for winter. What do you guys think.
Tony K.