350 €
Your compatible file
No ready-made power calibration
View package details ↗
Add-on
320 HP Add-on
€200 one-time
- Adds 320 HP to your 280/300 package
- Requires downpipe + suitable fuel
- For 280/300 package owners only
- Original backup kept
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.
✓ Original backup taken
✓ 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 FLASH
Different starting points. Your goal.
Compare options that include Flasher if this is your first purchase. Use the package selector if you already own a licence.
750 €
280 / 300 HP
Flasher included · stock hardware
View package details ↗900 €
280 / 300 / 320 HP
Flasher included · suitable downpipe and fuel for 320
View package details ↗For supported B48B16 / MG1CS003 vehicles. Flash requires VIN authorisation.
Included features
Alongside the power stage, toggles you control from the app. For track / closed-road use; road legality is the user's responsibility.
Crackle / Pops (adjustable)
Controlled crackle and pops from the exhaust. Rev range, speed and intensity are set from the app — without risking engine health.
Cold Start Delete
Silences the high-idle, noisy warm-up on cold starts. Quiet mornings — fully off or off once warm.
Speed Limiter Off
Removes the factory electronic speed limit (Vmax).
RPM Limiter
Adjusts the rev limit to suit your stage.
OPF / DP Calibration
Compatible calibration for particulate-filter delete or downpipe cars.
Sport Cooling
Earlier, more aggressive cooling for high load and track use.
What is included?
Adds the 320 HP stage to your existing 280/300 package. Your authorisation is updated; both stay on your car.
320 is not delivered on stock hardware — a downpipe must be fitted and fuel suitable. This is Stage 2 territory.
Own the Flasher but not 280/300? 280/300 + 320 together €700 — here.
Original backup kept; return to stock any time.
Requirements
Only for cars that already have a 280/300 package. Downpipe fitted and suitable fuel required.
FAQ
No downpipe — can I buy it?
You can, but 320 will not run safely without a downpipe. Without one, staying on 280/300 is the right call.
No package yet?
Then buy the Full package (€900) instead — Flasher + all three stages, €150 cheaper than one by one.
Refunds?
No refunds once delivered; see the terms of use.
Related
- Find my package — the right price for your situation
- Full package — complete is cheaper
- Stage 2 remap — hardware stage
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: destek@mostuned.com
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.