Anyone know a part number for an aftermarket free flowing filter (k&n, piper, etc) as a direct replacement to go in the existing air box for the Mahle lx331 cardboard shite filter please? Or better still best place to get one or help me.
Have an aftermarket k&n cone filter been fitted in my car but it has opposite effect sticking warm air in from engine bay, so am going to take a feed from side ducts to original box for cool air in. Unless anyone has alternative suggestions that they have tried and know to improve performance.
