PORSCHE 911 GT3 (991.1) – STAGE 1 PERFORMANCE SOFTWARE
$1,999.00
Stage 1: 475–500HP → 500–525HP (+25HP) | 325–339 → 339–354 lb-ft (+15 lb-ft). Stage 2: 520–545HP / 350–369 lb-ft. Bosch MED17.1.11. OBD flash. 100% reversible.
PORSCHE 991.1 GT3 / GT3 RS (2013-2016) — STAGE 1 & STAGE 2 PERFORMANCE TUNE
3.8L H6 — Bosch MED17.1.11 — OBD Flash
SKU: AMT.POR.991.1.GT3.STG1
Performance Gains
| Specification | Original | Stage 1 | Stage 2 |
|---|---|---|---|
| Power (HP) | 475–500 | 500–525 (+25 HP) | 520–545 (+45 HP) |
| Torque (lb-ft) | 325–339 | 339–354 (+15 lb-ft) | 350–369 (+28 lb-ft) |
Required & Recommended Parts
| Tune | Required Parts | Recommended Parts |
|---|---|---|
| Stage 1 | — | BMC Panel Filters |
| Stage 2 | Upgraded intercooler, downpipe / sport exhaust | Charge pipe, performance air filter |
Overview
The 991.1 GT3 brought a new generation of high revving naturally aspirated GT engine with an exotic 9000 rpm character. Tuning focuses on sharpening response and extracting cleaner power at very high engine speed rather than chasing turbo style gains.
Key Features
- 9000 rpm motorsport character
- high speed throttle precision
- modest but meaningful NA gains
- excellent for track day and exhaust tuned cars
Vehicle Specifications
| Parameter | Specification |
|---|---|
| Production Years | 2013-2016 |
| Engine | 3.8L H6 |
| ECU Type | Bosch MED17.1.11 |
| Flash Method | OBD |
| Time Required | Same day (OBD flash via POWERGATE4) |
Programming Instructions
This vehicle is tuned via OBD port flash using the POWERGATE4 tool — no ECU removal required.
- Locate the OBD-II port (under the dashboard, driver’s side)
- Connect the POWERGATE4 tool to the OBD port
- Follow the on-screen prompts to read your stock file (takes approx. 15–30 minutes)
- Send the stock file to AMT Tuning — we will prepare your custom tune
- Flash the returned tune file using the POWERGATE4 — your vehicle is ready to drive
- To revert: use the POWERGATE4 to flash your saved stock file at any time
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 | Porsche |
| Vehicle Model | 911 |
| Vehicle Generation | |
| Vehicle Year |
MAECENAS IACULIS
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ADIPISCING CONVALLIS BULUM
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