I have bought the bits and will fit later this year on insurance renew as can't with existing insurance! I will be going for 40 hp in a fiesta turbo. I will have it activated using a gear-stick knob with a guarded switch that will illuminate when on (built it my self! ). I have a controller that I can set so it is RPM and WOT dependent! I have issues with traction if I am flat out in anything but very good conditions in 1st and 2nd. So I am thinking that I can activate on change into 3rd ready for a killer overtake if needed! I have been in a pug 205 GTI with NOS and the kick was very impressive.