Heard that these can damage the MAF is this true, want to replace paper filter but which is best type panel or induction?

 

They can do yes. There are two potential problems with induction kits. The first isn't simply that they damage the MAF sensor, they can "fool" it into under-reading the amount of air going in, which leads to underfuelling, and potentially serious engine damage.

The second potential problem is that the increased vibration that induction kits often suffer from can fatigue the MAF sensor element and shorten its life. The consequences are the same as above if left unchecked. At end of day there's no reason to even want to fit an induction kit unless you're modifying well into the mid-300 horsepower range. Below that level, the standard one isn't restrictive.

The best all-round option is a good panel filter like the STi, K&N or Green products. They will offer a small improvement in breathing over the paper filter, without any of the risks inherent in many of the alternatives.