Originally Posted by Sprint8586:
What size are these?
K&N offers 2 seal kits for the sprint air box filters, a 2 1/2 and a 2 3/4. This one is the 2 3/4, I would be comfortable using this set on any injection from 2 11/16 to 2.900. Anything 2 5/8 and smaller I would suggest using the 2 1/2 kit.
