Just like us, engines need to breathe. Restrict the supply of air and they won’t work as well as they should – something that’s usually reflected in an increase in fuel consumption. But although your powerplant needs just about all the air it can get, it doesn’t want all the debris which is normally carried in it – and this is where the filter comes in.
To renew a filter, all you have to do is pop in the replacement. However, you don’t have to use a paper filter as a replacement, as there are other options to choose from. You could fit a sports filter, which simply slots into the original housing and will never need renewing.
Alternatively, you could go for a complete induction kit; this replaces the original system, including most of the ducting. Both additions improve a vehicle’s driveability, throttle response and power – with some set-ups boosting the output by as much as 10bhp and around 14Nm of torque.