One of the easiest and cheapest ways of adding more power to your engine is with a better air filter. Keeping the air your engine breathes clean and cold will help it to run and sound better, adding power and tuning to your car. There are a number of different kinds of air filters you can choose which will often depend on your make of car and budget. However, one of the most common and effective types is a panel filter. These replace the original filter found in your engine with a better quality of material. This makes the filter perform better and offers a simple way of boosting the power and roar.
Most panel filters by names like BMC are very affordable. They are suitable for most car makes and models, including Volvo S40 and are generally very easy to fit. Simply open the airbox, take out the old filter and drop in the new one. With a good quality panel filter keeping your engine clean, and reducing the heat under the bonnet, you’ll be amazed at the difference it can make.