ECU calibration
Stage 1 ECU Calibration + Handheld Flasher — Audi S4 (B9)
2017–2026 S4 (B9)
+58 hp, +92 Nm
$899
Details
Model: <span>S4 (B9)</span>
S4 (B9)
ECU calibration
Stage 2 Calibration Upgrade — Audi S4 (B9)
2017–2026 S4 (B9)
+85 hp, +130 Nm
Requires our Stage 1 and handheld tool
$299 $403
Details
ECU calibration
Stage 1 + Stage 2 Bundle — Audi S4 (B9)
2017–2026 S4 (B9)
+85 hp, +130 Nm
$1054 $1198
Details