What Exactly Is Being Modified in Car Customization?

When it comes to the modification of BMW 5 Series wheels, most people would think it is the exclusive domain of car enthusiasts. In fact, car modification has become a trend abroad. Even in Japan and the United States, where there is the highest enthusiasm for modified cars, it is rare to see original vehicles without any modifications. Many manufacturers provide a wide range of modification accessories for corresponding models after the release of new cars, and offer clear modification guidelines to car owners. Many major car manufacturers even have specialized modification companies (branches) for their own cars, such as AMG for Mercedes-Benz and TRD for Toyota, etc.

The modification result of a car reflects the owner's taste and their perspective on driving. Generally speaking, car modifications can be divided into three aspects: appearance, mechanics, and audio-visual. When human life entered the e-era, car modifications added a new element: intelligence. However, among all the modification projects, the most appealing one is mechanical modification, which perfectly combines the owner's imagination with the unlimited potential of the car to be developed. The main mechanical structure of a car can be roughly divided into: body, interior equipment, engine power, transmission, suspension, brakes, and electronic control system. If any of these components is modified, the immediate impact and change on the car can be felt.

I. Appearance
The modification of the vehicle's exterior has always held a significant position. The quickest and easiest way to change the vehicle's exterior is to install aerodynamic kits. The aerodynamic kits are commonly known as "big packages", which basically include the air intake grille, side spoilers (side skirts), rear bumper, and rear wing. Sometimes, we also see an additional lower spoiler added to the original bumper, which is generally called the "chin": If the front and rear bumpers are not replaced but only the chin is added, it is sometimes called a "small package". Installing aerodynamic kits not only makes the vehicle more visually appealing and sportier, but the most important thing is that it usually brings about good performance improvement. Installing aerodynamic kits does not make the vehicle go faster. Strictly speaking, good kits usually reduce the speed and enable the car to have a more stable performance.

II. Tires
The tires (wheel hubs) are also very important. Whether it's powerful engine power or a sensitive braking system, ultimately, it all depends on the grip of the tires to be achieved. Moreover, for more professional racing cars, different tires are used on dry and rainy surfaces in track races, and for off-road races, even higher requirements are placed on the tires.

III. ECU System

When the cars were manufactured, the fact that they would be sold worldwide and needed to adapt to various environments and oil quality was taken into account. Therefore, the program in the original ECU is a compromise that best meets numerous conditions. That is to say, at least 30% - 40% of the energy is sealed (especially for European cars, which are renowned for their safety). Especially in the upgrade of the ECU for turbo vehicles, unexpected power improvement effects can be achieved. In China, the basic methods for automotive tuning ECU are divided into two types: external attachment and implantation.