The Advantage 3i provides superior performance economy specifically tailored to work exclusively on i-ART engines.

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Superior Performance

The Advantage 3i provides superior performance economy specifically tailored to work exclusively on i-ART engines.

Adjustable Tuning

The Tunit Advantage 3i premium model provides easy adjustment 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. Adjustment dial allows can be adjusted higher for mor power or lower to improve economy.

REVIEWS

Dave,Ford S-Max 2.2

Nice increase in torque, car more urgent when pressed.

Michael,Skoda Octavia 1.9 Tdi

When I sold my A6 I traded my tunit for one to fit my wife's 1.9 TDi Automatic Skoda Octavia. the installation was straight forward although a little awkward because of the way Skoda clamps the leads. Once installed we started seeing a better than 10% improvement in milage on the VAG 1.9 TDi engine which on a long trip will often show in excess of 50MPG if driven carefully.