Boomba Oil Cap Honda Civic Si 2017+ Wheel Offset_44mm Premium steel top rings with

Premium steel top rings with Napier style second rings and higher tension oil rings for ultimate oil control are included with each set along with round wire locks

Both the outer housing and internal inertia ring is high-speed computer zero balanced from the factory

The premium grade SNAM420 Alloy steel

protruding just enough to show off the COBB logos etched into the top of each polished tip

Boomba Oil Cap Honda Civic Si 2017+ Wheel Offset_44mm Premium steel top rings withThis oil cap is CNC machined, and crafted from premium billet aluminum. Available in red, blue, black, or natural finish; it is designed to easily replace the original oil cap and improve the visual effect under your hood! A great touch of personalization to your ride!