Psychologists believe that there is a need for individuals to express deep emotions that they have never expressed adequately before. The act that involves such release is called catharsis, a term that denotes purgation. The need for catharsis lies on the fact that to be able to free an individual from unclean influences, there is a need to purify him and the things around him. The removal of unclean influences such as these results to the betterment and well-being of the person concerned.
The need for catharsis does not only apply to individuals, it applies to normal everyday things as well. Chimneys do the task of allowing smoke to escape from kitchens and fireplaces. Small holes in flower pots exist to drain excess water from the lump of soil that houses the roots of the plant. Human beings perspire to be able to rid themselves of heat and impurities that prove useless to the body. Generally, different forms of release are employed by different entities to be able to have an even better existence.
Automobiles have the need to let off steam, too. This is why they employ exhaust manifolds which serve the purpose of collecting exhaust gases from several exhaust ports into the exhaust pipe. This allows automobiles to get rid of by-products that they have no use of. Consequently, automobiles need not live with these unwanted substances as they put their existence to better use.
The many kinds of exhaust manifolds available for automobile owners include BMW exhaust manifolds. They are especially manufactured to provide passageways for the exhaust gases that BMW vehicles need to get rid of. The presence of BMW exhaust manifolds on BMW vehicles allow them to fare even better as they help these automobiles channel their offshoots properly. They are the only contraptions which provide BMW vehicles the release that they need to be able to remain one of the most sought-after automobiles in the market today.