For the Masses: Our Billet Oil Filter Cap for N-Series and S55 Engines

engine side view of Future Classic F8X (S55) oil filter cap before and after comparison

Our sophomore effort in crafting a high-end oil filter cap was designed to cater to the masses: the ever-popular S55 engine. In doing so, we have happily created an application for most N-Series engines as well—from the 4-cylinder N20 all the way up to the potent N55.

Future Classic F8X (S55) Oil Filter Cap in every color with boxSide photo of Future Classic F8X (S55) Oil Filter Cap red versus blackAnodized blue Future Classic F8X S55 oil filter capClose up of red Future Classic F8X S55 oil filter cap Underside close up of Future Classic F8X S55 oil filter cap

Attention to Detail

Holding these caps in hand, it’s immediately apparent that each of them echo our commitment to the smallest aesthetic details. Special CNC tools were specifically sourced to accomplish exactly that and, as a result, each cap is a marvel right out of the DMG Mori 5-Axis.

All four oil filter caps together. S63 and S65 variants coming soon.

Similar to the G8X (S58) cap we released a week before, the S55-variant also has minimalist, consistent laser work: on the top, the data you need to know (tool size and torque spec) and a small nod to Future Classic. On the side, the part number is cleverly hidden below the cap's belt line so that it disappears when the cap it fitted. Seeing all four cap models next to each other, the family ties are clear even despite the size differences.

Size comparison between the G8X S58 and F8X S55 Future Classic oil filter cap

Close up of hidden part number on Future Classic F8X S55 oil filter cap

Why Aluminum?

Because of aluminum’s propensity to handle and dissipate heat, it is an excellent material from which to build our oil filter housing caps. By getting your oil up to temperature quickly, but tangentially evacuating excess heat, the aluminum oil filter housing cap will help your fluid operate within its working range while effectively preventing thermal breakdown (at the threshold where your motor oil will degrade and lose viscocity). It is largely the reason why heat sensitive components, like your radiator, are constructed from the same material.

Future Classic F8X (S55) oil filter cap with livery boxSide view of Red anodized Future Classic F8X (S55) cap installed on F87 M2 CompetitionWe expect this cap to be hugely popular with the N-Series and S55 crowds. It joins our aforementioned G8X cap as another high-end option for the most discerning enthusiast.

Future Classic F8X (N/S55) Oil Filter Housing Cap

Product Details:

  • Compatible with S55-equipped BMW cars and most N-Series engines (replaces BMW 11427525334)
  • Plug and play replacement for OE plastic cap
  • CNC precision machined from 6061-T6 aerospace aluminum
  • Improves heat dissipation and increases cap longevity
  • Four anodizing options: Ferrari Red, Royal Blue, Hard Coat Clear, & Hard Coat Black
  • Proudly made in USA
  • Optional Add-On: Genuine BMW oil filter kit (11427854445)

Application List:

  • F8X M3 / M4
  • F87 M2 Competition
  • F87 M2 (N55)
  • Most N-Series engine applications