Car Universal Turbocharger Silicone Boost Pipe Nipple Turbo Vacuum Gauge Fitting Feature: 1. High quanlity and durable to use. 2.100% brand new that has never been used. 3. Easy installation, simply drill a 8mm hole in your silicone boost pipe and push the nipple through the hole (from the inside),pop on the sealing o-ring, washer and tighten down with the nut. Specification: type: silicone boost pipe fitting/nipplematerial: aluminum alloycolor: silverdiameter: 20mm/0.79inheight: 40mm/1.57inweight: 30gmanufacturer part number: trbvac01package included: 1 x silicone boost pipe fittingÃ Ã Ã