subaruFA20DIT Platform 93
2020 VB WRX STI - Custom Stage 2 Tune
Customer Request
The Goal
Maximize torque delivery without compromising the stock connecting rods. The goal was to smooth out the factory 'boost spike' to prevent knock events (DAM drops) and create a predictable, flat torque curve that holds power all the way to redline.
daily drivabilityreliability power
Proven Results
Performance Results
Baseline
268hp
258 tq
Gain
+32hp
+22 tq
Final
300hp
280 tq
Tuner Notes
- Rev Hang Eliminated: Remapped throttle closure on deceleration for natural engine braking.
- Boost Control: Replaced the factory 'spike-and-taper' strategy with a flat, sustainable boost curve (19psi peak).
Modifications
Build Specifications
Visual Showcase
Build Gallery
LXL Performance Stage 2 tuned VB WRX STI