AAM high flow cats and an AAM ECU upgrade!!!!!Good luck! those things are beasts, they've got the torque, gearing, moddability and camaro's weigh around the same as Z's.
AAM Angled Spacer
Headers ( if you don't install them yourself ) will NOT be worth it....
It may give you the Tourque you need......but beyond that....FI
do you have an automatic?? if not...you may want to brush up on your launches!