Will it give you more power or MPG's? Well, no. Is it more dependable than the stock cap on your L5P? Yeah. Does it look really cool when you pop the hood? YES! That's really the reason to upgrade to this billet oil filler cap, it looks killer when you open the hood. And why shouldn't your engine bay look good?! Designed to reuse your stock o-ring and featuring a cam-lock design, this is a direct replacement to your stock cap that will function exactly the same to ensure a secure seal.