Previous owner of my current car had a K&N in it....it was the first thing I removed and replaced with a OEM filter. Just letting you guys know what my experience has been. I could very well be wrong, but I still rather not take the chance. I have since replaced the stock airbox anyway.

Hano - when you order up your fueling kit from Vast, ask Mike his take.... he is an S4 guru and would probably know better than me.

 

good idea.. he should give you some good knowledge

 

thanks for the info pkblu