SYVECS S7Plus-BE46 - BMW M3 E46 PnP Kit

QT Parts is a Finnish online store.

Our warehouse is located in Nokia, Finland.

You can collect your order directly from us if needed. Simply select “Pickup” at checkout.

Pay securely with multiple payment methods, including invoice and installment plans through Klarna.

The delivery time for products in stock is 1-5 business days. We ship worldwide.

If the product is not in stock and it is a pre order product, the average delivery time is 5-21 business days. If the product has a longer delivery time than previously announced, we will be in touch. International orders may be subject to VAT, import duties, and customs fees upon arrival in the destination country.

Terms for product returns:

• You must return the ordered products within 14 days of receiving
• The products must be unused and without damages
• Commission fee for handling returns is 21,90€
• For product returns, the customer is in charge of the return costs. Only door to door service (Express)
• Shipping costs are not refunded

For international orders sales are final and non-refundable. Once an order is placed, it cannot be canceled or returned. By placing an order, you acknowledge and agree to these terms.

Return address: QT Parts, Vasarakatu 8B, 37150 Nokia, Finland.

Pre order / made-to-order products

If the product you have ordered is a pre order or made-to-order item, it is not subject to the 14-day right of withdrawal or return under consumer protection laws, as the product is manufactured or sourced specifically based on the customer’s individual order.

If you wish to cancel your order before receiving the product, we will refund 50% of the total order amount.

This condition applies to the following product categories:

• Suspension
• Engine Tuning
• Engine Parts
• Exhaust Systems
• Fueling
• Turbochargers/superchargers
• Drivetrain
• ECE-approved Downpipes

All of the above products are manufactured or sourced individually based on the customer’s order, and therefore cannot be returned after delivery, unless the product has a manufacturing or material defect.

In the event of such a defect, the standard liability for defects as provided by consumer protection legislation shall apply.

Syvecs S7Plus-BE46 is a professional standalone ECU Plug & Play solution for the BMW M3 E46 (S54 engine). The system offers a completely new level of engine and ride control – from street cars to turbo and race builds.

The Plug & Play installation integrates directly into the car's original wiring harness without cutting any wires, but introduces Syvecs' racing-grade control and data management system.

Key features

Full engine control

• Real-time live tuning for all engine calibrations

• Full VANOS (VVT) control

• FlexFuel support (E85/gasoline automatic detection)

• Closed-loop Lambda control

• Adjustable closed-loop boost pressure control for turbo and compressor assemblies

• Support for large MAP sensors

• High and low impedance injector control, staged injection support

Driving control & performance

• Fully adjustable launch control with anti-lag strategies

• Rolling anti-lag / pit lane limiter

• Adjustable traction control (wheel speeds, G-force, steering angle)

• Multiple maps for steering wheel buttons: engine map, boost level, traction & launch

• Flat shifting function

• Adjustable throttle response with multiple throttle maps

Safety & motor protection

• Configurable engine protections (oil pressure, temperature, AFR, EGT, etc.)

• Cylinder-specific closed-loop knock control

• Possibility of automatic cylinder shutdown in case of severe knocking

• Fuel pump control and fuel pressure monitoring

• Anti-theft and valet modes

Data analytics & connectivity

• Built-in data logging up to 8 hours @ 1000 Hz

• RJ45 Ethernet connection for fast live tuning and remote control

• Compatibility with CAN dashboards and Syvecs SDM displays

• Internal oscilloscope for signal analysis

Extensibility

• Support for external sensors and safety limits

• Free configuration of DBW throttle valves

• Wet & Dry nitrous control

• Possibility to control external systems based on sensors

• Full CAN integration with other ECUs

Why Syvecs for the E46 M3 project?

The BMW S54 is a high-revving and technically demanding engine, especially in turbo or supercharged configurations. The Syvecs S7Plus provides precise ignition, fuel and torque control, which is critical for both performance and engine durability.

• Race-level engine control without compromise

• Plug & Play with OEM integration

• Full control over NA, turbo and compressor configurations

• Advanced data logging and analytics

Aptitude

• BMW M3 E46 (S54)

• Stage 1 street cars → thoroughbred track and drag projects

• Turbo and compressor structures

• Professional engine building and motorsport