The filters are constructed using stainless steel cage internal and our famous 15mm thick twin layer foam. This filter is designed to be fitted to the outside of a rigid pipe such as a MAF sensor housing.
63mm (2.5inch) ID Neck Universal Foam Cone Filter
ProMax Large Universal Foam 63mm Rubber Neck Air Filter in Enclosed Airbox
ProMax Large Universal Pleated 63mm Rubber Neck Air Filter in Enclosed Airbox
Ramair 2.5 inch 63mm ID Universal Dry Clamp-On Performance Intake Air Filter