My friend, who drives an '03 GT, with a few mods such as exhaust, headers, and intake, wants to install a Lunati cam. He's new to modding mustangs and I informed him he needed to be absolutely sure before taking out everything under the hood only to find out he does not like the way the car behaves (he also said the new cam requires a new computer.) He wants to know if the cam is wild, the amount of power added, and any opinions about the way the car will sound afterwards. Also, how much does it typically cost to do this procedure? He was already qouted $800.00. ANY other info is welcome!! Thanks!