Every machine is different. Choose a setting 0-9 from the adjustment dial. Move higher or lower to improve economy.

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Superior Performance

The Tunit Standard provides incredible torque just where you need it. Working in the field and road becomes faster, fuel savings mean less downtime filling up.

Adjustable Tuning

The Tunit Standard model provides adjustment 0-9 via an internal dial or bespoke fine tun through our national dealer network to meet your type of work head on.

Go Eco

Every machine is different. Choose a setting 0-9 from the adjustment dial. Move higher or lower to improve economy.

REVIEWS

Stuart , Kia Sedona

Very pleased with service provided and achieving a 15% saving of fuel consumption. The previous 'flat spot' has also disappeared.

Geoff, Mitsubishi Galant 2.5 i twin tu

I have just fitted an Optimum Plus to my VR4/ Legnum that have an unaccesable ECU - preprogrammed to my car spec, fitted by myself (20th Century man+) in half an hour. BLOODY AWESOME. Highly recommended.