K & N Air Filter - EX400 Ninja KA-4018 Custom Air Cleaner Assembly — Round/Open This camshaft set is legal

This camshaft set is legal for AMA Superbike Competition

Includes proper number and thickness of friction plates

Setup as sold (4 across the row) or with a combination of your OEM stacks for two separate power characteristics

FCS® cheek pads design delivers comfort and support and features 5 mm peel-away custom-fit layer

The muffler section uses a PowrFlo 4

K & N Air Filter - EX400 Ninja KA-4018 Custom Air Cleaner Assembly — Round/Open This camshaft set is legalFits directly into OEM airbox with application specific Sealing Bead to ensure a precise fit Fuel management modifications are not required for increased performance Pleated media provides a large filtration area offering long service intervals Designed to provide increased performance Made in the U. S. A.