K & N OE Replacement High-Flow Air Filter - Yamaha YA-2002 (04-11) while the end cap is

while the end cap is made of carbon fiber

* Constructed from high-grade lightweight titanium

That is huge on these little guys

I trust these on my Honda CBR1000RR for their highest-rated HH compound

K & N OE Replacement High-Flow Air Filter - Yamaha YA-2002 (04-11) while the end cap isOE Replacement High Flow Air Filter Yamaha Fits 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, Washable and reusable, pre oiled and ready to ride, Designed to provide increased performance, Made in the USA