I am planning to buy Vitos big bore kit somewhere in the future. First i buy extented a arms and G-force axle. Im not sure when i have enoug money to bough these parts. I live in finland we have in here in winter icetracks in the lakes. And i want drive fast with my blaster on ice. Does Vito big bore kits have any heating problems anymore? Is the piston which come with the kit good? And does it come any problems in cold weather? Of course it has to be jettet right.