Skunk2 Honda Billet Oil Cap (M33 x 2.8)Skunk2's Fine Tuning products and accessories, like its Polished Billet Oil Caps for most Honda and Acura engines, help put the finishing touches onto your vehicle you work so hard to make perform well. Consistent with Skunk2's racing heritage and high performance parts manufacturing practices, each Polished Billet Oil Cap is precision CNC machined and features a durable, fully polished finish. Skunk2's Polished Billet Oil Caps feature an 33mm x 2.