Okay everyone so I am new to moding as i have left my previous charger and challenger they way they were so when getting the 2014 Shaker R/T i decided that I am going to go all out. So far all i have done was added the Mopar Catback exhaust and i am ready to do more. Can anyone tell me what throttle upgrade is needed over the existing one? and if mopar makes one as i prefer to keep everything mopar. Also Headers is there a specific set up or can i just say i want the mopar headers for the 5.7 Hemi and the dealer order them from mopar. Last what is the advantage of the catch can does this add performance please forgive me as i am knew again.