What are the pros and cons of a cone intake from lets say K&N vs. a shroom intake like the HKS super mega flow http://www.hksusa.com/products/?id=813 . I understand that the shrooms allow more airflow but is it worth it since it doesn't filter as well?
K&N filter supposedly filters better and costs about a 3rd as much. Pretty easy choice to me. The only advantage to the HKS is that its smog legal on a Mk2. But for the $100 or so price difference I can reinstall the stock air box every couple of years.