FR-S/BRZ Forced Induction Comparison - 86 Showdown
Turbo vs. Rotrex vs. Roots
Mahle PowerPak Plus Pistons for the Subaru BRZ & Scion FR-S
Mahle PowerPak Plus Piston Kit Assemblies are now available for the Subaru BRZ's FA20 and Scion FR-S's/Toyota 86's 4U-GSE boxer engines
2008 Subaru WRX - Tomioka WRX Turbo & Equal-length Header Upgrade - Proving Grounds
Boosting power output out of Subaru’s turbocharged flat-4.
The Truth Behind The Subaru EJ-Series Engines - Tech-Knowledge
Are they as weak as tuners claim?