Tuning Knowledge
& Insights

Learn the fundamentals
behind performance tuning.

Explore the newest articles on tuning, diagnostics,
and what your logs are actually telling you.

Articles for: WRX Performance

5 Critical WRX Gauges Your Dealership Never Mentioned

Your dealership handed you the keys but forgot to mention the 5 gauges that determine whether your WRX lives or dies. Boost pressure, AFR, knock count, oil temp, and coolant temp tell you what's really happening under the hood when the fun starts.

FA24 Knock Detection: Why the 2022+ WRX Tunes Differently Than EJ

The FA24's direct injection system changes everything about knock detection compared to EJ engines. Most tuners still use EJ strategies, leaving power on the table.

Why Your Stage 2 WRX Boost Spikes: 3 Sensor Readings That Reveal Wastegate Failure

Stage 2 WRX owners know the fear: random boost spikes that shouldn't happen. Three specific sensor readings in your datalog will reveal wastegate actuator failure before catastrophic damage occurs.

Why Your Stage 2+ WRX Knocks Despite Conservative Tunes & Premium Fuel

That mysterious knock in your Stage 2+ WRX isn't your tune going bad or bad fuel—it's intercooler heat soak creating detonation conditions. Here's what your data logs are actually telling you.

WRX Knock Events After ECU Tunes: Real Data vs False Positives

That post-tune knock you're seeing might not be knock at all — most low-RPM events are just injector noise triggering oversensitive ECU parameters. Here's how to separate real knock from false positives using actual sensor data.

Tuning Knowledge & Insights