In a properly running car, the exhaust will usually be light and practically colorless. You may not even be able to notice the exhaust. However, if there's something wrong somewhere, one of the first indicators will be a change in the nature of the exhaust. The exhaust can become thicker and also have various colors all of which point to specific issues within the car.
In some cases, a heavier exhaust is to be expected in hard running conditions such as when the car is being started up in the morning.
If your car has all stock parts installed, you may be considering some upgrades to improve performance. Brakes that are installed in the factory are often the least expensive option for the car manufacturer, and upgrades to them can greatly improve handling and performance of your car. Here are some of the different brake upgrades that will give your car better handling:
1. Replacing Rear Drum Brakes with Disks