ok i just got a '10 cobalt xfe base with a 5 speed. what is the best and cheaper starter mods to do on these cars for a bit more power and responsiveness. i am more a lt1 and ls1 type guy as i have camaro's but not looking to make a hot rod out of a more daily driven car thanks to gas prices. just want to make it a bit more enjoyable to drive and to deal with traffic(having to adjust to the slower passing vs a v8's).