Zettle1

I did an LS3 conversion on my 2012 SS. Got a set of Chevrolet Performance heads, Dual Valve Springs, Comp Cam, Speed Tech LS3 Conversion Kit, Fast LSX Intake, LSA throttle body, BBK 1 7/8" Headers, Full Exhaust w/ H pipe I believe, CAI. Maybe a few other things, can't remember.

Anyhow, when I got done, had the car tuned and for about a month the car was loud and sounded great. Here we are about a month and a few weeks later and the car sounds quieter. Hasn't thrown a check engine light, doesn't seem to have a lack of power but somehow it's quieter now. I've noticed it over the last few days, I thought I just got used to the sound but I don't think I did. I believe it is definitely quieter.

Anybody ever experienced this? Or can anyone possibly point me in the right direction on where to look for a possible problem?