GMC SIERRA 1500 5.3L V8 – STAGE 1 PERFORMANCE SOFTWARE
$799.00
Stage 1: 355HP → 380HP (+25HP) | 383 → 409 lb-ft (+27 lb-ft). Stage 2: 392HP / 428 lb-ft. ACDelco E92 / E90 / E93. OBD flash. 100% reversible.
GMC SIERRA 1500 5.3L V8 (2014-2024) — STAGE 1 & STAGE 2 PERFORMANCE TUNE
5.3L EcoTec3 L83/L84 V8 — ACDelco E92 / E90 / E93 — OBD Flash
SKU: AMT.GMC.SIR.53.STG1
Performance Gains
| Specification | Original | Stage 1 | Stage 2 |
|---|---|---|---|
| Power (HP) | 355 | 380 (+25 HP) | 392 (+37 HP) |
| Torque (lb-ft) | 383 | 409 (+27 lb-ft) | 428 (+45 lb-ft) |
Required & Recommended Parts
| Tune | Required Parts | Recommended Parts |
|---|---|---|
| Stage 1 | — | Performance air filter |
| Stage 2 | — | Sport exhaust, performance intake, headers |
Overview
The Sierra 5.3L is one of the broadest volume opportunities in the GM truck market and should be treated as a foundational catalog product. Peak gains are modest compared with turbo platforms, but the real sales story is throttle mapping, torque reduction cleanup, shift scheduling, and towing behavior. Because of the installed base, even a conservative gain product can generate meaningful throughput for AMT.
Key Features
- Huge installed base from work truck to Denali trims
- better tow feel and part throttle response sell well
- transmission tune is as important as engine tune
- modest 91 octane power gains are proven marketable
- strong dealer network product
Vehicle Specifications
| Parameter | Specification |
|---|---|
| Production Years | 2014-2024 |
| Engine | 5.3L EcoTec3 L83/L84 V8 |
| ECU Type | ACDelco E92 / E90 / E93 |
| 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 | GMC |
|---|---|
| Vehicle Make | GMC |
| Model | GMC Sierra 1500 5.3L V8 |
| Production Year | 2014-2024 |
MAECENAS IACULIS
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ADIPISCING CONVALLIS BULUM
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