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The C-11 provides incredible torque just where you need it in any commercial condition. Fuel consumption has been shown to improve across commercial fleets in all sectors
The Tunit C-11 is adjusted on installation to meet your vehicle and load needs. Dealer install recommended.
The C-11 is used predominantly for better economy. A bespoke tune provides exact adjustments for the best economy while delivering maximum performance.
Alastair , Toyota Hilux 2.5 D-4D
They are fantastic, easy to install, I like the ability to adjust the box if you want low down pulling power or top end speed, and it paid for itself within a couple of months what more can you ask for.
David , Landrover Range Rover 3.6 V8
Noticeable increase in power and torque. Extra acceleration. Took mine to 110mph in what seemed like no time at all.