As taken from BoneyBradleys ste:
Model Updates: October 1994 the GTI receives Long beach alloy wheels and abs as standard fit and All models get driver airbag & engine immobiliser. July 1995 All models get oval indicators, all GTI models now have the bee sting aerial. September 1996 ABS standard fit for all models and fog lights standard on all GTI models
anything before October 94 would NOT have ABS. My GTi is a 93 and doesn't have any of the above!