View Spec →Oil Filler Cap
The smallest upgrade you'll touch every oil change — and the one that feels like the whole car.
A1-ENG-CC · A1 GradedKeeps blow-by oil out of your intake — so the top end stays as clean as the day it was built.
A1-ENG-CCSerialized & inspected · Ships in 1–2 business days
A twin-chamber billet separator with a bronze coalescing filter and internal baffles that strip oil mist from crankcase vapor before it can coat valves and cake the intake. A sight tube shows the catch level at a glance and the base drains with a quarter-turn — no disassembly to service. Bracket, fittings, and a length of PCV-rated line are in the box.
Universal PCV — vehicle-specific brackets available
View Spec →The smallest upgrade you'll touch every oil change — and the one that feels like the whole car.
View Spec →Catches the metal your filter can't. What you see at the next change tells you everything.
View Spec →Synthetic media, a real bypass valve, and a nut welded on for tool-off removal.
View Spec →One block of forged aluminum, six pistons, zero flex. The part every other part is measured against.