Review on Efficient Fuel Injection Throttle Body by Hitachi - Complete with Gasket/O-Ring by Jonah Koehnke

I bought this for my 2008 Avalanche when it was idling rough and low (500-400) rpm at the lights. Before buying I cleaned the mass airflow sensor and throttle body and replaced the throttle position sensor but it didn't help. Bought about 2 years ago with no problems. The truck had 130,000 miles when I installed it and now it has over 157,000 miles. I cleaned it after 15,000 miles and 25,000 miles with the MAF sensor. I'm glad it's still great and idles at 600 rpm. (Also Installed AFM Technology Shutdown Device)