Should I install a cold air intake in my Vauxhall Astra?

I've been thinking about upgrading my Vauxhall Astra's air intake system to improve its performance. Is it worth it?

Yes, installing a cold air intake can increase horsepower and improve fuel efficiency.

It depends on your driving habits and the climate you live in. In certain situations, it can have a noticeable impact on performance.

No, it's not necessary. Modern engines are designed to work efficiently with the stock air intake system.