Power Pop Smart Unlike all the other free-bleed valves on the market which present big problems in idle stability, and even bigger problems in regulating the depression and consequently imperfect functioning, we have created and patented a free-bleed valve, totally free from these problems. Our new Power Pop can be mounted in any car equipped with a turbo petrol engine and without any of the above-mentioned problems. Operation is guaranteed even in the presence of injection ignition systems with air flow reading via air flow meter or hot wire. The valves marketed up to now by the majority of manufacturers, to overcome the unfortunate ""minimum"" problem, adopt a depression regulator, with which the air flow rate (in depression) can be established so as not to allow the valve to be opened in minimum conditions. Not even considering that by obstructing or paralyzing the control vacuum at idle, we find ourselves with a very limited valve opening during accelerator release. Therefore anomalous condition for the good functioning of the air exhaust. In our new Power Pop this difficult and inconvenient adjustment has been eliminated. Sound exhaust and super-venting guaranteed. Covered by industrial patent no. 01314079 product ordering code SS