Thanks all, for the great suggestions and looking into the minor technical details after all it's a BRAKE. Yes I have tried it at 120 and 140 and hitting hard brake and it reacted almost instantly like before. Thanks @Barry and Location Garage for all the good work of swapping the brake booster with make shift arrangement for 200 dhs labor cost. We need more garages in Dubai like this one........Knowledgeable, Capable and Flexible with reasonable pricing.