Environmental psychology addresses environmental problems such as density and crowding, noise pollution, sub-standard living, and urban decay. 1  Noise increases environmental stress.
Hayapower is correct. The tube from the converter is for the smog pump (air injection) for the catalytic converter. The EGR tube comes off the passenger side exhaust manifold. Disconnecting the tube from the converter will not hurt if you remove the conveter and close off the tube end or leave it open.If you leave it open then at times you will hear a pumping sound from the tube caused by the smog pump when it reaches proper temperature.t's thermactor/secondary fresh air injected from the smog air pump for converter/catalyst secondary burn/conversion.. Disabling/restricting an EGR flow (drastically), can/will result in a DTC.. The tube is needed for a fresh air suppy to the converter..
It is often thought that removing catalytic converters will increase power. This is not always true. Modern catalytic converters are not that restrictive of exhaust gases and especially on small engine cars do not rob you of much if any power.The WRX's main exhaust bottleneck is NOT the catalytic converters, it's the downpipe design.t is often thought that removing catalytic converters will increase power. This is not always true. Modern catalytic converters are not that restrictive of exhaust gases and especially on small engine cars do not rob you of much if any power.