For the m.y. 1987 the Porsche 911 Carrera H-series was offered in Club Sport version (M-637 Sport package) with engine with higher speed power block control, competition shock absorbers, 6 / 7Jx16 wheels, stiffer engine mount . Thanks to the abolition of many details of the standard equipment, the weight was reduced from 1210 to 1160kg. 381 examples of the Carrera Club Sport were produced, of which 300 in the USA configuration.