Just for information ive put a K & N panel filter in my wifes 1.6 auto Note, worth doing if you're planning to keep the car. The filter comes with K & N stickers too so you can put in the engine bay to remind that its not for changing etc... Think it cost £42 & comes with a million mile warranty & does not need to be re oiled for tens of thousands of miles. Very easy to change, took minutes as its just slots into the original air filter housing, no tools required etc...Hoping it pays for itself in the long run on slight fuel savings & cheaper servicing costs. No noticeable power gains but never really expected any, lol.