Performance is our passion and we work to get more out of your engine. Optimise your petrol engine today for more power, torque and fuel economy.

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Superior Performance

Performance is our passion and we work to get more out of your engine. Optimise your petrol engine today for more power, torque and fuel economy.

Adjustable Tuning

The Tunit Optimum Plus is easy to fit to any petrol vehicle by simply plugging in to the OBD port. The Optimum Plus uniquely can be adjusted from your phone Eco to Sport Plus.

Go Eco

Easily switch between Eco, Sport and Sport Plus from your phone. The Optimum Plus provides a unique ability to fine tune to your needs.

REVIEWS

James,VW Transporter T6 (New)

I have now had a chance to drive the Van around 500 miles and drive in a mixture of town, A road and motorway roads. I think the tuning takes the van to the level it should have been when it left the factory. There is a much more useable Rev range so it’s just easier to drive. It’s by no means a quick vehicle, but the added Rev range while combined with a bigger punch means where you were having to constantly change gear you can now just leave it in a gear. 2nd gear is genuinely useable from tickover and 6th gear will now pull from 50mph on the flat whereas before that was 70mph. It can also maintain speed on the hills on the motorway where before it required a two gear down change. I was not really bothered about the fuel economy, and I have not done enough mileage to accurately say how big the improvement is, but it looks to be 10-20% so Around 50-100 miles more out of a tank which is significant. On the way to you the average for the journey was 34.5mpg and the return was seeing just under 40mpg. The overall improvement to our camper van is huge. It’s now far more enjoyable to drive and requires less gear planning to drive up hills. I would very happily recommend this to other owners. This is not some spikey tuned set up. It’s now a nice progressive smooth power delivery. It’s subtle yet very effective.

Mark,Mercedes

Just a quick note to say that I fitted the tunit over the weekend and the results are excellent. The smooth quality original characteristics have not altered at all, however the acceleration is much stronger and longer I have not been on the motorway yet so not sure what the MPG will be like Thanks for all your help