IMO the best S/C Kenne Bell.
For the Single Turbo Fastlane.
For the TT set up send you car to LMR. (If they can do it on the vettes I"m pretty sure they can do it on the camaro's too).
BTW LMR was the first to hit 9's on the 5th Gen Camaro.
My Personal Choice would be the Kenne Bell S/C and sent it to LMR