300 HP Complete Package
€750- ECU Unlock + 300 HP engine tune
- MOSTUNED Flasher included at no extra cost
- Feature coding package
- Stage 2 or Stage 3 gearbox + Gear Display
- Burble · OPF/DP calibration · Sport Cooling
- Cold Start · Vmax · RPM Limiter
For Flasher owners
280/300 HP Package
€500 one-time
- 280 HP + 300 HP ready maps
- Added to your existing Flasher access
- Stock hardware, software only
- Original backup + return to stock
Payment is processed by Stripe right here on this page; your card details never reach us. Access is granted automatically to the VIN you enter.
✓ No Flasher yet? The €750 bundle is better value
✓ Secure Stripe payment
✓ Return to stock any time
Flash access for your VIN
Flash works for VINs authorised by MOSTUNED. Confirm vehicle, ECU and unlock compatibility before buying a package. Free tools do not include a Flash licence.
MOSTUNED / PACKAGESMOSTUNED / BMW MOSTUNED / BMW MOSTUNED / UPGRADE
Choose your power. Complete your package.
300 HP, feature coding and gearbox tuning in one package. Choose 321 Edition for 321 HP / 500 Nm.
321 Edition Complete Package
€1,250- 321 HP · 500 Nm
- MOSTUNED Flasher included at no extra cost
- All services in the 300 HP complete package
- Feature coding + Stage 2/3 + Gear Display
- Requires a downpipe and E30 fuel
- Map Switch options are added separately
321 Edition Upgrade
+€500- For an existing MOSTUNED 300 HP package
- 321 HP · 500 Nm
- Requires a downpipe and E30 fuel
Features depend on vehicle equipment and software compatibility. 321 Edition requires a downpipe and E30 fuel.
What is included?
Two power stages: 280 HP and 300 HP. Both run on stock hardware, software only — no downpipe or parts required.
This package is for MOSTUNED Flasher owners: access is added to the Flasher access already on your VIN, and the 280 and 300 stages appear in the app's Flash tab.
No Flasher yet? Do not buy this on its own — the Flasher + 280/300 bundle (€750) is €100 cheaper than buying separately.
Package features (crackle, cold-start delete, Vmax, RPM limiter, OPF/DP, sport cooling) are toggled from the app.
Requirements
Active MOSTUNED Flasher access on your VIN. Turkish-market 1.6 B48B16 (MG1CS003) — 320i (G20), 420i (G22/G26), 520i (G30), X3 sDrive20i (G01). ECU must be unlocked.
FAQ
What if I want 321 Edition too?
Upgrade an existing MOSTUNED 300 HP package to 321 Edition for €500, or choose the complete first-installation package for €1,250. 321 HP / 500 Nm requires a downpipe and E30 fuel.
I do not own the Flasher — can I still buy this?
You can, but you would not be able to write your own file; the bundle (€750) gives you both for €100 less — buy that instead.
Refunds?
No refunds once access is granted; see the terms of use.
Related
- Find my package — the right price for your situation
- Flasher + 280/300 — if you have no Flasher — €750
- 321 HP add-on — 321 Edition upgrade — €500
Before you buy
- What do you need to flash your BMW? — Vehicle compatibility, connection and VIN access: what to check before your first flash.
- What does Unlock Check check? — Understand the difference between an ECU lock check and VIN-authorised Flash access.
- Flasher or a ready-made power package? — Compare the licence to write your own file with MOSTUNED calibration packages.
Contact
Get in touch
WhatsApp: +90 547 470 40 40
Email: [email protected]
Instagram: @mostuned
Istanbul · Monday–Saturday 09:00–18:00 (TR time) · Remote service by appointment
Not sure?
Send your model, hardware and goal — we will pick the right package together. We do not sell what does not fit.