S7i - Stand Alone ECU

Code: SYV-S7i

The S7i is our new low cost engine management system, designed to cater for clients on a budget that still need a extremely powerful controller!
Replacing the S6i, the ECU can be purchased as a stand alone or as part of our Plug N Play kits.

In Stock



The S7-I ECU offers an extremely high level of precise engine management control for the clients on a budget. The triple processor unit uses a high speed RISC processor for code execution and an additional large FPGA for high speed engine position tracking, allowing the scheduling of code to be independent of signal patterns, increasing flexibility, efficiency and accuracy under transient conditions. This powerful combination also allows advanced control algorithms but yet easy to map for the end user still using our SCal software and S7 Firmware.

Designed to cater for PnP kits where clients also need the programmable CAN Bus and Drive-By-Wire support offered by the S7-I.

Using the same 3 x AMP Superseal connectors, the S7-i also has the same pinout for its I/O as the S7plus ECU. This means that users can easily upgrade to an S7Plus at a later date if more inputs and outputs are needed without having to change the loom.

The Third Processor present is available for in the future users to write their own code in C for Full Vehicle Integration via Canbus and Build some custom strategies to handle some of the unique requirements which are now found in OEM Applications. Currently only Syvecs staff can do this but we are working on offering this out to all our dealers very soon!
Cased In A Sealed Aluminium Billet Unit With 3 x Waterproof Connectors Offering 94pins


16 x General Purpose Analogue Inputs:
4 x 5V/Bipolar, Sensor/Sync/Speed, Programmable Trigger Voltages
4 x 5V/Thermistor, Sensor/Sync/Speed, Fixed Trigger Voltages
4 x 5V Sensor Input
4 x Thermistor Sensor Input

1 x NTK Lambda Input

1 x K-Type Thermocouple Circuit
1 x Knock Input


18 x High/Low Side Driver Outputs:

2 x Half Bridge Outputs (Max 10 Amps)
16 x Low Side Injection/PWM Outputs (Max 10 Amps)
6 x TTL Ignition Drivers


2 x Can 2.0B (Second Canbus added on Sept 2020 units onwards)

1 x Rs232 Output

100 Mhz Full Duplex Ethernet For Connection To PC For Programming And Data Download

16mb Onboard logging memory

Dimensions : 185 X 145 X 55 mm




Full Plug in Kits Available for the Following Cars:


Golf R32

Honda FD2

Supra 93-98 – Manual

Supra 98+  - Manual

Subaru Impreza 2006-2008

Subaru Impreza Hatch

Subaru Impreza MY2015


Additional information

Installation Manual




ECU Comparison Chart


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