BMW 330I (G20) – STAGE 1 PERFORMANCE SOFTWARE
$899.00
Stage 1: 255HP → 300HP (+45HP) | 295 → 347 lb-ft (+52 lb-ft). Stage 2: 320HP / 369 lb-ft. Bosch MG1CS003 / MG1CS024. OBD flash. 100% reversible.
BMW 330I (G20/G21) (2019-2024) — STAGE 1 & STAGE 2 PERFORMANCE TUNE
2.0T B48B20B Inline-4 — Bosch MG1CS003 / MG1CS024 — OBD Flash
SKU: AMT.BMW.330I.B48.G20.STG1
Performance Gains
| Specification | Original | Stage 1 | Stage 2 |
|---|---|---|---|
| Power (HP) | 255 | 300 (+45 HP) | 320 (+65 HP) |
| Torque (lb-ft) | 295 | 347 (+52 lb-ft) | 369 (+74 lb-ft) |
Required & Recommended Parts
| Tune | Required Parts | Recommended Parts |
|---|---|---|
| Stage 1 | — | Performance air filter |
| Stage 2 | Upgraded intercooler, downpipe / sport exhaust | Charge pipe, performance air filter |
Overview
The 330i uses the Bosch MG1CS003 or MG1CS024 family depending on year, and the B48 is a highly saleable modern turbo four because it responds well to torque request, boost, and lambda optimization while keeping OEM manners. AutoTuner supports OBD read and write on supported B48 cars, while later protected DMEs can still require unlock handling first. In Canadian cold weather the car remains crisp and consistent, with dense air helping low and midrange response on pump fuel. Realistic Stage 1 gains are strong for a stock daily driver, and intercooler plus downpipe hardware moves it neatly into Stage 2.
Key Features
- high volume BMW tune product
- easy OBD flash path
- strong daily driver torque gains
- excellent cold weather response
- logical bolt on Stage 2 upgrade
Vehicle Specifications
| Parameter | Specification |
|---|---|
| Production Years | 2019-2024 |
| Engine | 2.0T B48B20B Inline-4 |
| ECU Type | Bosch MG1CS003 / MG1CS024 |
| Flash Method | OBD |
| Time Required | Same day (OBD flash) |
Programming Instructions
This vehicle is tuned via OBD port flash — no ECU removal required.
- Locate the OBD-II port (under the dashboard, driver’s side)
- Connect the AMT Tuning flash tool to the OBD port
- Follow the prompts to read your stock file (approx. 15–30 minutes)
- Send the stock file to AMT Tuning — we will prepare your custom tune
- Flash the returned tune file — your vehicle is ready to drive
- To revert: your original stock file is saved and can be flashed back at any time
Shipping & Contact
AMT Tuning Ltd, 6-25 Edilcan Drive, Concord, Ontario L4K 3S4 Canada
Phone: +1 877 469 9440 | Email: sales@amttuning.com
| Make | BMW |
|---|---|
| Vehicle Make | BMW |
| Model | BMW 330i (G20) |
| Production Year | 2018-2024 |
MAECENAS IACULIS
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ADIPISCING CONVALLIS BULUM
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