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440 hp & 500 Nm without Compromise: The World’s Only Fully Reversible Plug & Play Engine Management for the Emira V6.

Installed in approx. 5 minutes, delivered pre-mapped, and 100% reversible to factory stock – without touching the OEM software.

You want noticeably more torque and power from your Emira V6, but are unwilling to compromise engine longevity or lose factory originality. The well-known OEM weak point of the Toyota 2GR-FE engine lies in its fragile stock pistons: torque levels significantly exceeding 500 Nm inevitably cause fatal piston ring land failures. While generic flash tuning takes uncalculated risks here, JUBU relies on proven engineering. Our upgrade kit delivers a solid 440 hp while strictly limiting torque to a safe approx. 500 Nm – maximum punch without exceeding the mechanical threshold of stock engine components.

The frustrating hassle with expensive aftermarket controllers for exhaust valves or rev-matching is finally eliminated as well. External add-on boxes frequently interfere with the Lotus CAN bus, triggering check engine lights and confusing the engine electronics. The JUBU 440 kit controls the exhaust valve, auto-blip (rev-match), and launch control smoothly and natively inside the ECU. No erratic switching, no harsh race-only on/off behavior, but seamless daily driveability paired with uncompromising precision. You simply select your desired driving mode (Tour, Sport, Race) via the OEM controls just like stock.

The dynamic improvement on the road is immediately evident: With approx. 100 Nm more torque in the lower-to-mid RPM range, the Emira pulls forcefully out of corners. Accelerating from 100 to 200 km/h, the kit shaves off roughly 1.5 seconds, while 5th-gear in-gear acceleration improves by over a full second – without the need to downshift.

Installation sets a new benchmark in OEM-level fitment: JUBU manufactures a custom ECU enclosure that bolts directly to factory mounting points using original hardware. We completely eliminate failure-prone adapter harnesses. The original Lotus factory wiring harness plugs directly into the ECU – 100% OEM fitment with zero contact resistance or chafing points. The entire swap is completed in approx. 5 minutes (as shown step-by-step in our installation video). Your original Lotus factory ECU remains completely untouched on your shelf – no overwriting, no altered flash counters, 100% reversible. Before shipping, you can configure your individual preferences directly via our downloadable order form (PDF).

IMPORTANT DISTINCTION – PLEASE NOTE:

This JUBU 440 Power Upgrade is a fully pre-configured, turn-key standalone system ("Pre-Mapped") for end customers: plug it in, bolt it down, and drive away immediately.

It should not be confused with our JUBU Plug & Play EVO ECU Kit, which is sold as uncalibrated "blank hardware" exclusively for professional tuners and dealers, requiring custom rolling road dyno tuning.

Benefits / Advantages

• Turn-Key Performance: Solid 440 hp and approx. 500 Nm – fully pre-programmed; no dyno calibration or third-party tuning required.

• Massive Acceleration Gains:

  • 100 – 200 km/h: approx. 9.5 s vs. 11.0 s OEM (approx. 1.5 seconds faster)

  • 80 – 120 km/h (5th gear): approx. 4.5 s vs. 5.6 s OEM (approx. 1.1 seconds faster in-gear pull)

  • 0 – 100 km/h: approx. 4.0 s (OEM approx. 4.3 s)

  • Up to approx. 100 Nm additional low- and mid-range torque punch.

• True OEM Integration: Custom JUBU enclosure matches factory mounting points; plugs directly into OEM vehicle connectors without intermediate patch harnesses.

• Harmonic Exhaust Valve & Drive Mode Management: Seamless exhaust valve operation across OEM modes (Tour, Sport, Race) – eliminates erratic third-party valve controllers.

• Integrated Auto-Blip (Rev-Match): Precision downshift rev-matching directly from the ECU without CAN bus disruption.

• 100% Reversibility & Value Retention: Your stock Lotus ECU remains untouched. Zero OBD flashing, zero traces in the factory ECU, fully reversible in approx. 5 minutes.

• Active Piston Protection: Intentionally calibrated to approx. 500 Nm to protect fragile 2GR-FE stock piston ring lands from mechanical failure.

• Tailored Customization: Personal setup details (valve behavior per mode, rev limit, octane rating) are pre-configured according to your completed order form.

Product Details

• Hardware: Syvecs ECU architecture housed in a bespoke JUBU enclosure featuring direct OEM Lotus connector headers.

• Software: Thoroughly calibrated JUBU EM-440 calibration with refined road manners and crisp, predictable throttle response.

• Drive Modes: Differentiated calibration maps for Tour, Sport, and Race (throttle mapping, exhaust valve strategy, dynamic response).

• Built-in Engine Protection: Advanced safety strategies with automated torque derating under critical intake air or coolant temperatures.

• Modular Upgrade Path: Serves as the foundation for future upgrades – easily expandable to higher JUBU power stages.

• In-Depth Tech: For full technical specifications on the underlying ECU architecture, refer to our JUBU P&P ECU Kit EVO (dealer version)

• Origin: Engineered & Assembled in Austria.Engineering by Design: Conscious Differences to Lotus Factory Setup

• Optimised Thermal Management: Cooling fans engage earlier than stock. This is an intentional safety feature, not a bug: Lotus runs the engine excessively hot from the factory to satisfy strict emissions cycles. Our software actively protects cylinder head gaskets and hoses from heat soak – perfectly matched for spirited driving and JUBU cooling upgrades.

• Component-Friendly Cold Start Strategy: Eliminates aggressive ignition retard solely used for rapid catalytic converter heating, focusing instead on rapid oil pressure stabilization and minimal mechanical wear.

• Instrument & Cockpit Systems: All cockpit displays and chassis systems (ABS, ESP, Drive Modes, digital dash) remain fully functional. Current exception: The cruise control Resume function is temporarily disabled via software. All other cruise control functions work as intended.

Fits for

• Lotus Emira V6 (Manual transmission)

Scope of Delivery

• 1x Syvecs JUBU Plug & Play ECU (in vehicle-specific JUBU enclosure, pre-loaded with EM-440 software)

• 1x Custom pre-configuration according to your submitted order form

Options / Optional Extras

• Installation & Dyno Session at JUBU: Professional installation at our facility in Münzbach, Austria, including test drive and before/after dyno verification (incl. video).

• Bluetooth Module & Syvecs Pro App: Enables on-the-fly map switching (including stock power mode), 4 selectable throttle pedal maps, 4 exhaust valve profiles, and live telemetric sensor display/logging on your mobile device (available as hardware pack or installed).

• Motorsport Traction Control with GPS: Highly responsive 12-stage adjustable traction control for maximum grip in wet conditions, mountain passes, or on the track (available as hardware pack or installed).

• Custom Setup via Order Form: Download our order form (PDF), select your individual setup parameters, and submit it with your order. We configure your ECU specifically for your car prior to dispatch.

Notes / Installation

• Installation: Rapid swap in approx. 5 minutes using original mounting locations.

• Trackday Notice: For frequent circuit use, we strongly recommend stepping up to our JUBU Emira 460 Power Upgrade. Repeated track sessions cause severe thermal failure of the stock Lotus catalytic converters and induce heavy thermal stress on the engine due to exhaust backpressure. Thanks to significantly optimised exhaust flow, the 460 kit actually subjects the engine to noticeably less overall stress than the 440 kit.

• Homologation: Motorsport component for competition/off-road use only.

Inquiry & Appointment Booking

• Want to unlock serious pace in your Emira V6 without jeopardising engine reliability? Contact us directly via email.