Stage III Technologies of La Jolla, Calif., last monthreceived final FAA certification of its FAR Part 36 Stage 3 noise kit/thrust reverser for the Gulfstream II/III. Thecompany, which claims its hush kit reduces overall noise to the 70- to 73-dBA level (depending on aircraft model), is seeking orders for installations to begin this summer. The first four kits are priced at $1.5 million. Subsequent orders booked before July 1 are priced at $1.795 million, after which the full retail price of $2 million will apply.