Hi, I,ve recently added a k and n filter to replace the existing factory model,and have experienced a nice little increase in performance!,
what I was wondering was can I take this a step further and add something like a cold air induction kit to improve on this further,
any help or advice on this and wher I could get hold of such a thing would be thankfully received,
I have a 2002,A6 2.0 petrol.

 

You can add a cold air induction to add some HP, but it probably wont add anything noticeable if your car has a snorkel (since the snorkel's job is to bring cold air to the filter)

The cold air filter mod requires a different air filter than the drop in K&N do you'd basically have wasted your $ on the drop in. There is a write up on DIY, look it up

 

Yeh ta
Big help