Modelix Racing have announced some small updates to their range of Ultimate engines. To build on the M-5 and M-8’s well established base, both engines now feature an all new black coloured head which has been slightly modified to increase the amount of air flow going through the glow plug area and keep the temperature of the plug cooler. Both the M-5 and M-8 engines also now come with the new Novarossi patented dual rubber sealed bearings installed. These new additions help the engines to run more stable and give drivers/ mechanics an easier tuning engine. Finally, Ultimate M-5 and M-8 tuned engines are also available in combos at very competitive prices.