Review on OBDMONSTER Easy Intake Adapter: Ultimate Automotive Smoke Machine & Leak Tester for 12V Vehicles by Lamar Marshall

This product has saved me a lot of time and money. I stuck it in the air intake, pumped it up, hooked it up to my fog machine which connected to my air pressure, waited a few seconds, looked around and, voila, found the problem. Below was a vacuum hose that was not connected. It worked great. And the best part is, it was easy to fix.