I'm coming up for a service and worried they will just put in a cheap paper air filter.
As a driver, not a mechanic, what's the setup in a Williams? In my Clio 1, there was a paper ring held in a container that I replaced with a K&N unit that made a dfference, if only in the sound the engine made.
Is the Willy like this or does it use one of those filters shaped like it would fit an upturned bowl? What's the difference between the two types of filter? Atm, my Willy 3 is very 'standard'.
Ultimately, I've got a service in a few days time, I want to get the best performance air filter at a reasonable price that will give me a good sound / performance, without being too unofficial (can be reverted to normal Renault np) and won't bollox my engine on a 5000 mile oil change.