MSD80 / MSD81 · K-LINE

N54 Flasher

Tune your BMW N54 from your phone. Stock and Stage 1 are free, forever. Stage 1+/2/2+ unlock with a one-time license tied to your car.

Get a license →

01

Free

Stock · Stage 1

Factory calibration and the software-only Stage 1 tune — raised boost, torque limiter opened, safe on pump fuel. No license needed, ever.

02

$1.00 one-time

Stage 1+ · 2 · 2+

Everything above, plus the higher-boost tiers for stock and upgraded hardware. One license, locked to your car's VIN and your phone — not a subscription.

How it works

  1. 01Connect the app to your car and open the Account screen to see your VIN and Device ID.
  2. 02Buy a license here with those two values — card or crypto.
  3. 03Paste the code you get back into the app. Done.

● We only ever see your car's VIN and a hashed device ID — no name, no email, no address. That's a deliberate choice, not an oversight.