VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
So, I've been considering taking 20-30 minutes out of my busy life to get a K&N High Flow Filter, and do the Swiss Cheese Mod.
The only questions I have are:
Does this mod affect the gas mileage?
Is there a possible way to replace the AirBox itself? If so, how much would it cost?