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Hey guys, so the grey Z passed smog so we put the kinetix manifold back on with the bigger throttle body. You will need to clear the engine codes that pop up which should be c1131 and p2135. The kinetix website says 30.5 horsepower gain but i doubt it is that much. My butt dyno can tell a difference though. If you enjoy the video, like and subscribe. Enjoy!