xHP Flasher
xHP Flasher is a transmission tuning tool for BMW and other ZF-equipped vehicles. Unlike FDL coding, xHP flashes a completely new transmission calibration.
What It Does
xHP modifies the transmission control unit (EGS) to change:
- Shift points and shift speed
- Torque converter lockup behavior
- Launch control RPM and aggressiveness
- Sport/Sport+ mode responsiveness
- Rev-matching on downshifts
What You Need
- xHP Flasher app — iOS or Android
- OBD2 adapter — Vgate iCar Pro BLE or xHP-approved adapter
- xHP license — purchased per transmission type (one-time)
Supported Transmissions
| Transmission | Found In | xHP Support |
|---|---|---|
| ZF 8HP50 | 330i, 530i, X3 30i | Full |
| ZF 8HP75 | M340i, M550i, X5 40i | Full |
| ZF 8HP90 | M3, M4 (S58) | Full |
| ZF 8HP76 | X5 M50i, 750i | Full |
How to Flash
- Connect the OBD2 adapter and open xHP Flasher
- Read your current transmission calibration (this is your backup)
- Select a map — xHP offers several stages:
- Stage 1: Improved shift speed, better downshifts, mild sport tuning
- Stage 2: Aggressive shift points, faster shifts, raised torque limits
- Stage 3: Maximum performance, very aggressive shifting
- Flash — the process takes a few minutes. Do not disconnect power
- Drive — the transmission adapts over 50–100 miles
Coding + xHP
xHP flashing is independent of FDL coding. You can:
- Flash xHP AND code with BimmerCode/E-Sys — they don't conflict
- Revert xHP back to stock at any time
- Flash a new xHP stage without affecting your FDL coding
Tips
- Start with Stage 1 for daily driving — it's a big improvement over stock
- Stage 2+ may require supporting mods (downpipe, tune) for best results on high-power cars
- Always save your stock backup before flashing
- xHP licenses are per transmission family, not per car — you can transfer between cars with the same ZF unit