Tunit Advantage 3


• Increased BHP
• Increased Torque
• Fuel Savings on average of 12%
• Adjustable between 0 and 9
• Able to be dealer bespoke tuned
• Easy to install
• 2 Year Engine Warranty
• 5 Year Product Warranty
• Life time Part Exchange or reprogram for your next vehicle.

£329.17 ex VAT

Item Description:

The Tunit Advantage 3 is the culmination of over 20 years of experience in diesel tuning and produces impressive performance and economy gains. Installation is usually simple using original plugs, however we recommend using one of our many qualified dealers available across the globe. Having your Advantage 3 fitted by one of our dealers opens up an array of benefits including a bespoke tune allowing us to alter the programming to suit your specific engine.

As with all of our products we are always available to provide extensive aftercare service, should you ever run into any issues. The Tunit Advantage 3 is our premium diesel product which covers diesel cars, 4x4s, vans and even some marine applications. All of our premium products come with Tunit For Life which is our lifetime part exchange scheme meaning you never have to pay full price to tune your vehicle again.

Superior Performance

The premium Advantage 3 provides the best in performance, savings and aftercare for your engine. Optimise your diesel engine with outstanding torque and BHP. Average fuel savings of 12%

Adjustable Tuning

The Tunit Advantage 3 premium model provides easy adjustment 0-9 via an external dial or bespoke fine tune through our national dealer network for maximum results.

Go Eco

Every driver and every car is different. Choose a setting 0-9 from the Advantage 3 external dial. Move higher or lower to improve economy.


Graham , Nissan Navara 2.5 dCI D40

There is marked difference in power mid and top range, don't really notice in low range due to chunky tyres, I think. Have not turned up the screw..... yet, but will give it a try someday, when I'm feeling brave! If there was one for my Audi S4, I would give it a go too.

Ian, Nissan Micra SR 1.5i

I’ve had 5 Tunit devices over the years . 4 were in new Nissans with the Renault 1.5 diesel, and as they were hard wired sold them on fitted. This Optimum Plus ,which I’ve only ever used for five years in a petrol Nissan Micra C+C 1.6 Essenza ( one of the first made in 2005), again, has amazing results. The car consistently does 45mpg , is incredibly flexible (in 5th at 30 mph on the flat on a trailing throttle ) Sport Plus. Using a maximum of 6,000 rpm when fancied, for a car probably only worth £2k , it seems quite sharp! A bit of a Wolf in Sheep’s clothing. I only use Shell V Power and scrupulously keep on top of the servicing, even though it only does 3,000 odd miles a year. Once again, thank you for your kind assistance.