All 2017 - 2022+ Honda Civic Si trims
Add a bit of flare to your engine bay with the Billet Si Oil Cap by TurboXS, available in 4 different colors!
The Si is known to have a very messy, unappealing engine bay but this little upgrade certainly helped ease my thoughts about it. I have personally tested this on the Unity Si for 2+ months / 3,000 miles, and can report that there are no seal issues. Now that I'm confident in its functioning, it will be available via Unity Performance!