CHEVROLET SILVERADO HD 6.6 DURAMAX DIESEL – STAGE 1 PERFORMANCE SOFTWARE
$1,299.00
Stage 1: 445HP → 520HP (+75HP) | 910 → 1106 lb-ft (+196 lb-ft). Stage 2: 560HP / 1217 lb-ft. GM E41 / E42 ECM. Bench flash. 100% reversible.
CHEVROLET SILVERADO HD 6.6 DURAMAX DIESEL (2017-2024) — STAGE 1 & STAGE 2 PERFORMANCE TUNE
6.6L L5P Duramax Turbo Diesel V8 — GM E41 / E42 ECM — Bench Flash
SKU: AMT.CHV.SIL.HD.66DSL.STG1
Performance Gains
| Specification | Original | Stage 1 | Stage 2 |
|---|---|---|---|
| Power (HP) | 445 | 520 (+75 HP) | 560 (+115 HP) |
| Torque (lb-ft) | 910 | 1106 (+196 lb-ft) | 1217 (+307 lb-ft) |
Required & Recommended Parts
| Tune | Required Parts | Recommended Parts |
|---|---|---|
| Stage 1 | — | Performance air filter |
| Stage 2 | — | High-flow air filter, performance exhaust |
Overview
The L5P market is one of the largest diesel truck opportunities in North America and has strong demand around towing response and usable torque. GM continued evolving access on this platform through E41 and newer E42 workflows, making controller handling part of the commercial process. Even so, this remains one of the best-margin diesel product families AMT can carry.
Key Features
- towing torque delivery
- rail-pressure strategy
- turbo vane control
- transmission coordination
- diesel drivability
Vehicle Specifications
| Parameter | Specification |
|---|---|
| Production Years | 2017-2024 |
| Engine | 6.6L L5P Duramax Turbo Diesel V8 |
| ECU Type | GM E41 / E42 ECM |
| Flash Method | Bench |
| Time Required | 3–5 business days (ECU mail-in bench service) |
Programming Instructions
The GM E41 / E42 ECM 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 | Chevrolet |
|---|---|
| Vehicle Make | Chevrolet |
| Model | Chevrolet Silverado HD 6.6 Duramax Diesel |
| Production Year | 2017-2024 |
MAECENAS IACULIS
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ADIPISCING CONVALLIS BULUM
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