How to make bmw 320d sound better?
John Campbell 
There are a few things you can do to make your bmw 320d sound better. One is to change the exhaust system. This will make your car sound louder and more aggressive. You can also install a new air intake system, which will make your car sound louder and more powerful. Finally, you can install a new muffler, which will make your car sound louder and more powerful.
How to make bmw 320d sound better by changing the exhaust system?
After installing an aftermarket exhaust, you might see a decrease in power. The reason is because of the back pressure that is created after the installation of this upgrade. What happens with this back pressure is that it can really increase turbo lag, reduce performance at higher RPMs, and even cause problems with timing on some vehicles.
How to make bmw 320d sound better by installing new intake?
This is an effective way on how to make bmw 320d sound better because the reason why changing the air intake makes car sounds louder is because it integrates with the factory air box intake, which allows air flow into to engine that bypasses all restrictions put there by BMW.
This upgrade also gives you increased torque and horsepower through increased airflow, which can give you up to 10-15% increase in power. And when you are accelerating your car, it will sound more aggressive due to the air that is being forced into the engine. Especially in turbo charged cars with an after market performance exhaust system installed.
How to make bmw 320d sound better by installing new muffler?
Installing a new muffler can make your car sound louder and give it a more powerful look because of its design. A lot of times they incorporate multiple outlets for increased flow which makes it sound even more aggressive when driving down the street or highway. Sometimes these are referred to as x-pipes, but not always necessary depending on what kind of car you have. A lot of times people use these terms interchangeably without actually knowing what each one does specifically.
