How to Improve the Emissions of a BMW 3 Series?

I have a BMW 3 Series and I am concerned about its emissions. What steps can I take to improve its environmental impact? Are there any specific modifications or maintenance routines that I should be following?

You can start by regularly changing the air filter and spark plugs, as these can affect emissions. Also, consider installing a high-flow catalytic converter for better exhaust flow. Another option is to switch to synthetic oil, which reduces emissions and provides better engine protection.

In addition to maintaining your car, you can also change your driving habits to reduce emissions. Avoid idling for long periods of time and try to drive smoothly and at a consistent speed. You can also consider using a fuel additive to improve combustion and lower emissions.

For more significant improvements, you can look into installing a performance chip or tuning your engine for better fuel efficiency and lower emissions. However, make sure to do your research and consult with a professional before making any modifications.