The period we learned to enhance the dynamic performance of the car, the first is to improve the engine's intake air. In fact, much of the front of the "modified intake system" in an article talking about the switch to high-flow type air filter and air box sets, etc., the role is the same. However, in most cases, these simple modification that only 2-3 percent of the power gain, if you want to seriously improve the power more than 10%, we need to make modifications to improve the depth of cardiorespiratory function of the engine. Because you can dramatically increase the engine's intake air, the installation of the supercharger intake (Forced Induction) system is to enhance engine power the fastest and most effective way to enhance the success of the modified engine Golf GTI conrods can power up to 50% or even 100%!
And maintain the engine naturally aspirated mode only works to enhance the efficiency of the air before entering the cylinder member and a plurality of links is the most "natural" method, because the entire process and the working principle of the intake of the components have not been changed, However, this modified approach, in most cases, only about 20% -25% of the gain (unless, as a world-class touring car racing as modified, power can improve 100%, but the price of an engine of the vehicle is approximately equal to 5 price).