Tunit Optimum


• Increased BHP
• Increased Torque
• Fuel Savings
• Reprogram for your next vehicle for £45
• Easy to install
• 2 Year Product Warranty
• 3 Year Part Exchange


Item Description:

The Tunit Optimum is a unique addition to any petrol engine vehicle. The Optimum is easy to install or can be installed by one of our dealers through our worldwide network. It’s packed with features which will improve your BHP and torque while also decreasing your fuel consumption.

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 is easy to fit to any petrol vehicle by simply plugging in to the OBD port. The standard Optimum comes pre-set in one of three performance settings from Eco to Sport Plus.

Go Eco

By using Eco mode on your Tunit Optimum you can make drastic improvements to your fuel economy and save money by filling up less often.


Girish,Nissan X-Trail 2.2 DITD

For the past four years I have been a user and a fan of Tunit, which I installed via Performance Racing Store in Mumbai. My Nissan Xtrail just rocks ever since... I keep it on the max setting of "9". Today I drove from Pune to Mumbai and back, with speeds between 130 and 160 kmph. And despite this, the vehicle delivered nearly 11kms per litre of diesel. I love the peppiness of the engine and the improved responsiveness.

Roger ,Audi A4 2.0 TDI 170bhp

Needed more mpg and grunt! Ordered tunit, fitted it, smiled!