5 Year Warranty

Showing 10–14 of 14 results

Superior Performance

Performance is our passion and we work to get more out of your engine. Optimise your diesel engine with outstanding torque and BHP. Average fuel savings of 12%

Adjustable Tuning

The Tunit Standard installed by you or through our dealer network. Adjustable 0-9 to your needs to bespoke tune through our dealer network.

Go Eco

Every driver and every car is different. Choose a setting 0-9, higher or lower to improve economy.


John,Rover 75

Runs a lot smoother more power well worth the money

Martin ,VW Jetta 2.0 TDI CR 140

Hi Rik, I got the Tunit box this morning as you said and fitted it in ten minutes! Brilliant results, superb fuelling and smooth power delivery. The car really pulls harder in the higher gears and is lovely to drive. I drove a 2000 mile road trip and on average i was getting 54.3 MPG, that is a massive improvement from what i was getting before. Very pleased and your service was top notch. Once again many thanks, a fantastic product. Best Regards, Martin Macqueen.