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Tell us about your build

You picked a package — now give us the details so we can build the right tune. Takes about a minute.

1Package

2Your build

3Register

Your package

Gearbox Custom Tune

Fully custom · from $750 USD

Gearbox + Custom Code

Full feature set · from $1,500 USD

Your car & goals

BMW model

Year

Current mods / hardware What are your goals?

Optional add-ons

ISN reset + codingGearbox ISN reset and coding to run a swap. +$150 Track support packageHands-on support for 4 races. +$500 My own custom functionWe develop any custom code you request. +$1,000

Add-ons increase the total. Leave blank if you don't need them.

Your tuner Choose your official 303 tuner

Every account is registered under an official tuner.

Create your account · required Name

Country

Phone

Password for the portal

Estimated total $—

We'll review your request and get back to you with the details, payment link and your registration in the tool.