well after about a good 45mins spent at the autoshow talking with the cobalt rep. he said that gm is going to be coming out with different stages very soon for our cars. the stage two is going to add about 25 horses. it includes a smaller diameter pulley, gm performance cold air intake, and an ecu reflash. hes not sure if anything else is going to be included. you are going to be able to retain your warranty, but it will lower the warranty time. he wasnt sure about how much though. he also said that there will be a stage two that will produce about 275whp with the help of new injectors and many more goodies. also he said that some people he know have taken the air conditioner unit out and he saw a gain of 25 HORSES!!! just thought i would share. if any of my information is wrong, feel free to correct me.