Quiet Technology Aerospace reports it recently installed its 45th Gulfstream Stage 3 hush kit. As the only viable provider of hush kits, the company sees a potential market of 350-plus GIIs, GIIBs and GIIIs “that are in a condition whereby the investment in a hush kit would be warranted.” The Opa Locka, Fla. company also said that its “break-even” point will come around installation 75.