ROLLS-ROYCE CULLINAN – STAGE 1 PERFORMANCE SOFTWARE
$4,113.99
Stage 1: 563HP → 625HP (+62HP) | 627 → 701 lb-ft (+74 lb-ft). Stage 2: 670HP / 752 lb-ft. Bosch MG1CS201. Bench flash. 100% reversible.
ROLLS-ROYCE CULLINAN (2019-2026) — STAGE 1 & STAGE 2 PERFORMANCE TUNE
6.75T V12 Twin-Turbo — Bosch MG1CS201 — Bench Flash
SKU: AMT.RR.CULLINAN.STG1
Performance Gains
| Specification | Original | Stage 1 | Stage 2 |
|---|---|---|---|
| Power (HP) | 563 | 625 (+62 HP) | 670 (+107 HP) |
| Torque (lb-ft) | 627 | 701 (+74 lb-ft) | 752 (+125 lb-ft) |
Required & Recommended Parts
| Tune | Required Parts | Recommended Parts |
|---|---|---|
| Stage 1 | — | BMC Panel Filters |
| Stage 2 | Lower restriction exhaust hardware | Performance air filter, charge temperature management |
Overview
Cullinan uses the modern 6.75 litre twin turbo V12 in an all wheel drive SUV application, where calibration quality matters because vehicle mass places more emphasis on low and midrange torque. The platform responds best to tuning that sharpens torque request and transmission behavior without upsetting the effortless feel expected from a Rolls-Royce. On stock hardware, sensible Stage 1 gains are straightforward and highly usable. Stage 2 should pair the ECU work with lower restriction exhaust hardware and attention to thermal control under sustained load.
Key Features
- heavy platform benefits from stronger midrange
- excellent low rpm torque tuning candidate
- MG1 control strategy supports clean gains
- transmission coordination is important
- good results with exhaust and temperature management upgrades
Vehicle Specifications
| Parameter | Specification |
|---|---|
| Production Years | 2019-2026 |
| Engine | 6.75T V12 Twin-Turbo |
| ECU Type | Bosch MG1CS201 |
| Flash Method | Bench |
| Time Required | 3–5 business days (ECU mail-in bench service) |
Programming Instructions
The Bosch MG1CS201 ECU requires bench flashing — direct connection to the ECU outside the vehicle. The ECU must be removed and shipped to AMT Tuning for programming.
- Remove the ECU from your vehicle (refer to your Rolls-Royce workshop manual for location and procedure)
- Package securely and ship to AMT Tuning at the address below
- AMT will connect directly to the ECU on the bench, read the stock file, and flash your custom tune
- Turnaround is typically 3–5 business days from receipt
- Reinstall the returned ECU — the tune is active immediately on start-up
Shipping Instructions
AMT Tuning Ltd, 6-25 Edilcan Drive, Concord, Ontario L4K 3S4 Canada
Phone: +1 877 469 9440 | Email: sales@amttuning.com
| Weight | 0.66 lbs |
|---|---|
| Dimensions | 16 × 14 × 12 in |
| Vehicle Make | Rolls-Royce |
| Vehicle Model | Cullinan |
| Vehicle Year | 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 |
MAECENAS IACULIS
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ADIPISCING CONVALLIS BULUM
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