Guides & News

Practical Radium Engineering buying guides, fitment checks and fuel-system planning, plus news from RadiumShop UK. Choose a topic to find the information for your build.

Radium AOS-R on a 2015+ Subaru WRX: Installation Planning
Plan a Radium AOS-R installation for a Subaru WRX: confirm the exact engine, VTE configuration, oil return, coolant circuit and manufacturer instructions.
Radium Engineering Catch Can Guide: Which Catch Can Do I Need?
Choose a catch-can application by ventilation circuit, vehicle fitment, mounting access and maintenance requirements.
Catch Can vs. Air-Oil Separator: Which Runs Cleaner on a Subaru WRX?
Compare catch cans and return-type AOS installations for a WRX, including VTE/VTA routing, fitment and inspection requirements.
Radium Catch Can Kits for the Ford Fiesta ST: Your PCV Questions Answered
Compare Fiesta ST PCV-side and dual catch-can kits, with product links, maintenance checks and manufacturer installation references.