CHRYSLER 300 SRT8 / 300S – STAGE 1 PERFORMANCE SOFTWARE
$1,370.99
Stage 1: 485HP → 505HP (+20HP) | 475 → 494 lb-ft (+19 lb-ft). Stage 2: 525HP / 516 lb-ft. Continental GPEC2A PCM. Bench flash. 100% reversible.
CHRYSLER 300 SRT8 / 300S (2012-2023) — STAGE 1 & STAGE 2 PERFORMANCE TUNE
6.4L 392 HEMI V8 NA — Continental GPEC2A PCM — Bench Flash
SKU: AMT.CHR.300.SRT8.392.STG1
Performance Gains
| Specification | Original | Stage 1 | Stage 2 |
|---|---|---|---|
| Power (HP) | 485 | 505 (+20 HP) | 525 (+40 HP) |
| Torque (lb-ft) | 475 | 494 (+19 lb-ft) | 516 (+41 lb-ft) |
Required & Recommended Parts
| Tune | Required Parts | Recommended Parts |
|---|---|---|
| Stage 1 | — | Performance air filter |
| Stage 2 | — | Sport exhaust, performance intake, headers |
Overview
The 300 SRT-style 6.4 HEMI cars share the same Mopar performance logic as the Charger and Challenger, with software mainly improving torque management and shift behavior. Modern years still fall under the locked PCM reality, so the workflow should be sold as access-first. This is a useful catalog extender because it reaches a smaller but still loyal HEMI sedan market.
Key Features
- torque management reduction
- throttle sharpening
- ZF8 shift refinement
- premium-fuel spark
- sedan drivability
Vehicle Specifications
| Parameter | Specification |
|---|---|
| Production Years | 2012-2023 |
| Engine | 6.4L 392 HEMI V8 NA |
| ECU Type | Continental GPEC2A PCM |
| Flash Method | Bench |
| Time Required | 3–5 business days (ECU mail-in bench service) |
Programming Instructions
The Continental GPEC2A PCM 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 | Chrysler |
|---|---|
| Vehicle Make | Chrysler |
| Model | Chrysler 300 SRT8 / 300S |
| Production Year | 2012-2023 |
MAECENAS IACULIS
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ADIPISCING CONVALLIS BULUM
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