More power, More Torque, Better Fuel Economy
  • Click to follow the Tunit Mini's progress
  • Own a tunit from only £10 a month!
  • A full range of performance and economy tuning solutions
    for over 3000 vehicles
  • Save fuel and reduce CO2 with Tunit
  • Read the excellent results of our 2010 customer survey

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About Tunit

The Diesel Tunit has been forged from many years of experience to bring a world class unbeatable range of diesel performance solutions. Tunit covers over 3000 vehicle and diesel engine applications and is available through our network of International Tuning distributors, dealers and agents, offering professional installation, sales, service and after sales.


Tunit Features

Tunit posseses many advantageous features not seen in other tuning solutions such as chips, generic tuning box, eprom serial reprogramming (flashing) or other types of fixed map devices. It is interchangeable between vehicles, able to be upgraded and part exchanged for other types of Tunit. External to the ECU (retro-fitted) means no interference with the original manufacturers engine equipment.

Its option to adjust power and performance provides easy manual adjustment for the novice or finer electronic alterations for the more dedicated tuner.

Tunit is backed up by an outstanding after sales service, part exchange program and class beating three year warranty.

Fuel Savings

In a recent tunit survey 75% of our customers' fuel economy improved by an average of 12%. Furthermore, the tunit has been scientifically proven to reduce harmful emissions by up to 27%.

With the ongoing cost of fuel worldwide, Tunit has become advantageous in reducing fuel costs for a variety of applications; not just improving performance but now helping with saving fuel cost on cars, 4x4s, SUV, commercial, trucks, vans, agriculture and even marine.



The tunit is normally connected to original plugs on the vehicle and can either be self-installed or by one of our nationwide dealers. Our dealers will provide a professional service, advice, fitting and after sales care. Every tunit comes with full colour fitting instructions.

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Tunit is a trading name of BVS Limited.
Registered Office: Leigh Street, Chorley, Lancashire, PR7 3DS
Registered in England
Company registration: 3026598
VAT registration: GB798049375

Website designed and maintained by Driven Design
©2010 Tunit (BVS Ltd.)