Review on ACDelco 213 4760 Original Equipment Manifold by Adolfo Goins

My engine had a rough idle, I thought it was all the parts the previous owner had installed. This smoothed out the idle with and without the A/C on, fixed the issue of voltage spikes when the A/C was on, and it now runs throughout the RPM range. just to keep things fresh. I highly recommend it if your car doesn't feel as energetic as it used to. If you hear a loud ticking noise from the rear of the engine, replace the vapor bypass valve near this part on the inlet.