LEXUS GX 550 (J250) – STAGE 1 PERFORMANCE SOFTWARE
$1,789.99
Stage 1: 349HP → 390HP (+41HP) | 479 → 531 lb-ft (+52 lb-ft). Stage 2: 430HP / 590 lb-ft. Denso Gen IV R7F702002. Bench flash. 100% reversible.
LEXUS GX 550 (J250) (2024-2024) — STAGE 1 & STAGE 2 PERFORMANCE TUNE
3.5T V6 Twin-Turbo — Denso Gen IV R7F702002 — Bench Flash
SKU: AMT.LEX.GX550.35T.STG1
Performance Gains
| Specification | Original | Stage 1 | Stage 2 |
|---|---|---|---|
| Power (HP) | 349 | 390 (+41 HP) | 430 (+81 HP) |
| Torque (lb-ft) | 479 | 531 (+52 lb-ft) | 590 (+111 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 GX 550 moves Lexus SUV tuning into the modern twin-turbo truck era, using the same broad Denso Gen IV logic family seen in premium Toyota trucks. The stock calibration is built around refinement and durability, leaving meaningful torque and response gains available through software. Because this is a new luxury off-road SUV with a strong buyer base, it is a high-value product gap to fill early. The outputs below are conservative pump-fuel targets.
Key Features
- new high-demand SUV platform
- strong torque-oriented tune value
- Denso Gen IV architecture
- premium off-road customer base
- excellent early-mover opportunity
Vehicle Specifications
| Parameter | Specification |
|---|---|
| Production Years | 2024-2024 |
| Engine | 3.5T V6 Twin-Turbo |
| ECU Type | Denso Gen IV R7F702002 |
| Flash Method | Bench |
| Time Required | 3–5 business days (ECU mail-in bench service) |
Programming Instructions
The Denso Gen IV R7F702002 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 workshop manual for location and procedure)
- Package securely and ship to AMT Tuning at the address below
- AMT will read your stock file and flash your custom tune directly on the bench
- Turnaround is typically 3–5 business days from receipt
- Reinstall the returned ECU — the tune is active immediately on start-up
Shipping & Contact
AMT Tuning Ltd, 6-25 Edilcan Drive, Concord, Ontario L4K 3S4 Canada
Phone: +1 877 469 9440 | Email: sales@amttuning.com
| Make | Lexus |
|---|---|
| Vehicle Make | Lexus |
| Model | Lexus GX 550 (J250) |
| Production Year | 2024-2024 |
MAECENAS IACULIS
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ADIPISCING CONVALLIS BULUM
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