Perfect for the tight applications w a normal filter will not fit.
Ramair 4 inch 102mm ID Universal Dry Clamp-On High Performance Intake Air Filter
Ramair 4 inch 102mm ID Universal Dry Air Filter with Velocity Stack and Coupler
Ramair 4 inch 102mm ID Universal Dry Air Filter With Velocity Stack and Coupler
Ramair 4 inch 102mm ID Universal High Flow Filter with Velocity Stack & Coupler
Ramair 4 inch 102mm OD Universal Dry Performance Air Filter with Velocity Stack
