The harmonic res chamber under the stock pipe and the "whoosh fingers" behind the TB are there to control intake noise, yes.
Don't feel bad...you didn't get 10-15 horse out a CAI on this car anyway; they really are about looks and sound, fwiw.
2014 Premium GT, SGM, Brembo, Auto, Tech, Comfort, etc. GT500s, Steeda UCA, VMP auto tune, 100 shot on BBR tune, best et: 11.38 at 120.85
2012 GT, Candy Red, Brembo, 3.73, Tech, Comfort, etc. Procal tune, Roush upper, UMI LCAs, Steeda red bracket, GT500s, 28X10X16 Hoosier slicks, best et: 11.91 at 115.23 RIP