Engine tuning begins with an admission and air release: the motor needs to "breathe". We put on an admission the filter of zero resistance, and for release at least direct-flow back to "bank". It is even better to establish completely direct-flow system, beginning from a collector to back "banks".What filters happen
The air filter clears air before it will get to the engine. It would Seem, the purer air will get to the engine, the car work will be more powerful. But alas: the majority of racing engines, especially for professional racing cars, is not equipped with air filters. Filters create resistance of air on an admission, and the more resistance, the capacity of the engine is more strongly lost. Usual paper elements have the big resistance to an air stream because the filter material is very dense. Alternative – "0", filters of the zero resistance, a filtering which material — the cotton gauze passing without decrease of filtering ability at least on 50 % of more air, than usual regular filters.