For the 2017 season, Honda redesigned the entire power unit, with the major change being the positioning of the turbo, compressor and MGU-H. This design split the turbo from the compressor and had them overhanging each side of the block with the MGU-H in the centre of the V all connected via a shaft. Honda confessed that the new design was "high risk" and it would take time to reach its potential, but will ultimately give higher performance. The season started with several reliability issues, and it took until the eighth round in Azerbaijan to score points. However, the team regularly finished in the points in the latter part of the season, scoring points in six of the last ten races, to finish ninth in the constructors' championship. The relationship between McLaren and Honda had soured, and in September 2017 the two announced that they would split at the end of 2017.