How can I improve my BMW M1's engine performance?

I just bought a BMW M1 and was wondering if there are any ways to improve its engine performance. Are there any modifications or upgrades that I can do to make it faster and more powerful?

First of all, congratulations on your new BMW M1! It's definitely a high-performance car that will give you loads of driving pleasure.

In terms of improving engine performance, there are a few things you can do. One easy and inexpensive way is to install a performance air filter. This will allow more air to flow into your engine, resulting in increased horsepower and torque.