Engine management

For Automotive applications
Engine Management Tune

What We Offer







What is the tunit standard?

The Original Tunit although regularly updated has been offering reliable and impressive PERFORMANCE and FUEL SAVINGS for 20 years. It covers all modern injection systems on Diesel vehicles and is provided with specific programming and connections for your vehicle. Reviewed constantly by press and used commercially as well as privately, the Tunit has many accolades of success and a long track record.

What are the benefits?

 - More Power
 - More Torque

 - More Fuel Economy
 - 10 Position Adjustment
 - Original Manufacturer's Plug
 - 3 Year Warranty
 - 1 Year Engine Warranty
 - 3 Year Part Exchange

How does it work?

The Diesel Tunit works in a unique way providing results unlike any other solution.. It connects to an original plug in the engine bay. Signals such as Air mass, accelerator position, fuel injection timing and fuel delivery are measured and from this a load calculation then delivers new improved signals to optimise the performance and economy. The Tunit does not remove any safety limits set by the manufacturer for the engines safety and longevity and in fact leaves the original ECU program intact. The result is the most effective Diesel Tuning solution that increases performance. Used internationally by Individuals, Commercial and Government the Tunit is unrivalled in results and ROI. Once removed the Tunit can be reused on another vehicle with an upgrade or part exchange.

tunit optimum

What is the tunit optimum

Tunit Optimum is a unique addition to any Petrol engine vehicle. Self or dealer fit through our World Wide network. The Optimum is the latest addition to the Tunit family and has all the same features including ease of installation, transferable to other vehicles. Performance is instantly transformed and fuel economy improvements are often seen.

What are the benefits?

 - More Power
 - More Torque

 - More Fuel Economy
 - Uses Original Manufacturer's Plug
 - 2 Year Warranty
 - 3 Year Part Exchange

How does it work?

The Petrol Tunit operates by in a totally different way to conventional Petrol Tuning. Mapping or chipping deletes the original software and replaces it with a modified program. The Tunit Optimum plugs into the OBD port which is a 16 pin connector installed by all vehicle manufacturers that enables communication with the Engine Management (ECU) . The Tunit works by leaving all original programming intact but then applying offsets to the signals coming to and from the ECU. These are done while leaving all the manufacturers safety limits in place unlike any mapping or chipping solution. If removed the Original manufacturers settings take over and the vehicle reverts to standard. Installation is simple and results are instant. After a further 100 mile learning period the Optimum adjusts to the individual car to provide even more performance. 


Contact Us Now







         01620 824691



Somnerfield Works

Hospital Road



EH41 3PA

WE have partnerships with the top brands across the world in the automotive industry

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