The rolling road test of an entirely new design is always a moment of apprehension. The Cat Cam design for the Arrow was created just for us because we did not want to increase the rev range of the engine but we did want to maximise output and maintain reliability. Our package of improvements include not only cams but also a custom exhaust manifold , lightweight flywheel and various other improvements. The net result was an engine that achieved 50% more power than standard (150BHP). The torque curve was also remarkably flat which should help drivability for those who are not used to a car with 300BHP/Tonne. All of this could only have been achieved with the help of Emerald M3D whose expert programming and assistance with the drive-by-wire system was invaluable.