Lotus Emira 3.5L V6 Supercharged (2022+)

Stage 1 & Stage 2 ECU Software + ECU Unlock Service

AMT Tuning’s ECU calibration for the Lotus Emira 3.5L 2GR-FE supercharged V6 delivers a serious increase in performance, sharper throttle response, and optional motorsport-style exhaust character, while maintaining OEM-like drivability and safety.

This package includes the ECU unlock procedure required on this platform so the factory ECU can be properly calibrated. Programming is performed on the bench – ECU must be shipped to AMT Tuning.

Vehicle Application / Specs

• Model: Lotus Emira
• Engine: 3.5L V6 – Toyota 2GR-FE, supercharged
• Output (stock): 406 hp / 320 lb-ft (approx.)
• Production Years: 2022 → Present
• ECU Make: EFI
• ECU Types: T4E / T6E
• Programming Type: Bench (ECU sent to AMT)
• Typical AMT Programming Time (after ECU arrival): 3–4 hours (plus unlock queue time)

Power & Torque (Crank – Approximate)

Actual output depends on fuel quality, hardware, and pulley size (if upgraded), as well as dyno type and ambient conditions.

Available Software Options

• Stage 1 Tune
• Stage 1 + Pops & Bangs Tune
• Stage 2 Tune
• Stage 2 + Pops & Bangs Tune
• Custom Tuning
  • Includes separate ECU logging tool and tailored calibration for more advanced builds

Key Features (All Calibrations)

• ECU individually reprogrammed for the 2GR-FE supercharged V6
• Optimized for 91+ AKI / 95+ RON premium fuel
• Improved throttle response and sharper pedal mapping
• Refined drivability at part throttle with strong gains under load
• Optimized fuel, ignition and torque control within safe limits
• Improved fuel efficiency at light load vs stock
• Datalog analysis available (in-house or via logging tool with custom packages)
• Factory protection strategies (knock, lambda, temperature, supercharger limits) retained and recalibrated, not disabled
• Rear O2 / DECAT strategies available for catless header applications (off-road use only)

Stage 1 – Performance ECU Software

Stage 1 is designed for a stock Emira 3.5 SC or cars with mild bolt-ons (intake / cat-back exhaust).

• No internal engine changes required
• Calibrated for 91–93 AKI pump fuel (95–98 RON)
• Focus:
  • Stronger mid-range and top-end power
  • Crisper, more linear throttle behavior
  • Road-friendly and track-capable performance with OEM-like smoothness

Optional: Stage 1 + Pops & Bangs for a more aggressive exhaust note. This is recommended only with a performance cat-back exhaust and high-quality exhaust components.

Stage 2 – Headers / Full Bolt-On / Pulley Upgrade (Track / Off-Road Use)

Stage 2 is aimed at Emiras equipped with headers, cat-back exhaust, upgraded intake and optionally a smaller supercharger pulley.

• Custom adjustment of:
  • Fuel, ignition and torque strategies
  • Boost / load modeling for higher blower speed
  • Rear O2 / DECAT strategies for catless header setups
• Calibrated to accommodate additional airflow from:
  • Aftermarket sports exhaust and headers
  • High-flow or catless catalyst solutions
  • Upgraded cold air intake
  • Supercharger pulley upgrades for higher boost (track use strongly recommended)

Because Stage 2 can be calibrated for an upgraded supercharger pulley, the exact pulley size (diameter or % reduction vs OEM) must be specified at ordering time so the calibration matches your hardware and target boost.

Stage 2, pops & bangs, decat and pulley-based high-boost configurations are intended for off-road / motorsport use only where permitted. The customer is responsible for compliance with local emissions and noise regulations.

Hardware Requirements & Recommendations

Stage 1

• Hardware: Completely stock vehicle is acceptable
• Recommended:
  • High-flow panel filter or intake
  • Performance cat-back exhaust (especially if selecting pops & bangs)

Stage 2

• Required:
  • Performance cat-back exhaust
  • Cold air intake / upgraded intake
• Recommended:
  • Aftermarket headers (high-flow or catless, track use only)
  • Supercharger pulley upgrade (quality pulley, correct belt length)
  • High-quality, heat-resistant exhaust components
  • Strong cooling system, particularly for repeated track use

If a smaller supercharger pulley is installed, consistent high-octane fuel and good cooling are strongly recommended.

ECU Unlock Procedure (Lotus Emira 3.5 V6 & AMG 2.0T)

The Emira ECUs are locked from factory. AMT Tuning offers a bench unlock and tuning service for:

• Toyota 3.5L V6 (2GR-FE)
• AMG 2.0T M139

For AMG-equipped Emira with automatic transmission, the 8G-DCT gearbox can also be tuned via the appropriate protocol as part of a custom package.

How the Unlock Process Works

1. Prepare and Package the ECU
   • Remove the ECU from the vehicle according to proper procedures.
   • Pack it securely with ample padding; the ECU must be well protected.
   • We do not accept any ECU that has been previously opened.
2. Ship to AMT TuningShip your ECU to:AMT Tuning Ltd
   6 – 25 Edilcan Dr.
   Concord, Ontario
   L4K 3S4
   Canada
   • Use a reliable carrier (we suggest UPS or DHL)
   • Delivery and pickup must be directly to our office, not to a drop point
   • All shipping costs, including any import taxes, are the sender’s responsibility
3. Unlock & Inspection
   • Our team physically opens and unlocks the ECU using professional tooling.
   • The ECU is thoroughly inspected for tampering:
     • We do not accept ECUs previously opened or modified.
     • If any non-authorized UART/CAN/FlexRay bus analyzers or devices are detected, the ECU will not be unlocked and no refund is possible (fraud detection policy).
4. Tuning & Programming
   • Once unlocked, we program the requested Stage 1, Stage 2, or custom calibration matched to your hardware, including pulley size if applicable.
   • Bench programming and calibration typically take 3–4 hours once the ECU is in our queue.
   • Typical unlock turnaround is about 1–2 weeks, but please allow up to 2–4 weeks depending on workload and shipping times.
5. Return Shipping & Reinstallation
   • The ECU is re-sealed, tested, and shipped back via the agreed carrier.
   • You or your installer refit the ECU, perform a systems check, and the car is ready to run with AMT software.

Tuning Method / How It Works (Summary)

1. Place your order for the Lotus Emira 3.5 Stage 1 / Stage 2 / Custom tune package.
2. Email sales@amttuning.com for ECU removal guidance and shipping instructions.
3. Send the ECU to AMT Tuning for unlock and calibration.
4. We perform the unlock, apply the selected calibration (including pulley-specific mapping if requested), and carry out bench checks.
5. ECU is returned, refitted, and ready to run with AMT software.

Ordering Information

When ordering, please include:

• VIN and model year
• Engine variant: 3.5L V6 supercharged (2GR-FE)
• Current hardware:
  • Intake
  • Exhaust / headers
  • Catalyst configuration (OEM, sports cat, or catless)
  • Supercharger pulley brand and exact size / % reduction (if upgraded)
• Desired software:
  • Stage 1 / Stage 1 + Pops & Bangs
  • Stage 2 / Stage 2 + Pops & Bangs
  • Custom tuning (for dedicated track builds, pulley combinations, or advanced logging)

If you are unsure which stage or configuration best suits your usage (daily driving, spirited road, or track), contact us and we will recommend the most suitable calibration and hardware combination for your Emira 3.5.