IMO waste of money, they make the Bosch ecu driven dbw engines feel really surgy and the throttle all or nothing like an on off switch. If you want the feeling of the sprint booster I can alter the pedal pilot map in your ecu mapping to have the same effect for £foc... But you won't like it.
You really need to be trying to get the pedal control more Linear, to allow you better control of the power on the bend and tight corners where you need the power to be eased in, not dumped in like the oem pedal mapping.
We do offer DBW-Linear throttle mapping, to make it feel more like a throttle cable driven engine.