This cover is made out of 2 aluminum pieces. This assembly fits in your K&N air filter to avoid any leaks and to get the maximal protection and performances. The assembly is designed to accept the OEM oxygen sensor.
The K&N air filter is not rigid as the OEM one and can deform and create leaks while using the OEM cover, this is why we design it with an inner pilot to have the best sealing results.
This is also a great option when you have an aftermarket Airbox Cover that won't fit because your stock air filter cover is too high.
2 aluminum laser cuts already assembled
New M6 rod(shorter)
Clear instructions for installation
You need to cut the taller velocity stack and.
You need to extend the 2 wires of the oxygen sensor.