The Megatron programme ended after 1988 as a result of rule changes that banned turbocharged engines from 1989 onwards, with Eddie Cheever scoring the old BMW engine's last podium finish with third place in the 1988 Italian Grand Prix at Monza. This race was also significant as it marked the first time Heini Mader had solved the problems caused by the FIA's boost limit valve, which limited turbo boost pressure to 4.0 bar in 1987 and 2.5 bar in 1988. By moving the valve closer to the engine, the problem of the turbo not delivering enough boost had been solved, and the Arrows A10B was among the fastest cars on the long Monza straights, faster even than the all-conquering McLaren-Hondas into which designer Steve Nichols had effectively incorporated elements of Gordon Murray's low-line Brabham design as well as featuring a more powerful V6 engine.