Amazon.com: Charge Air Cooler CAC 60 PSI Intercooler Boost Leak Tester for Class 7/8 Semi Truck or any heavy duty vehicle. Pair of 6061 Billet Aluminum Step Down Adapters 4", 3.5" and
Amazon.com: Turbo Boost Leak Testers 3" inch - 6061 Billet Aluminum - 30 PSI - Intake Charge Pipe Pressure Check - Includes Both Tire and 1/4" Air Fititng : Automotive
DIY Boost leak tester – Version 1 – eTuners
Wrenchin' Wednesday: DIY boost leak detector! - Hagerty Media
Universal Boost Leak Tester | Power Driven Diesel
Universal Boost Leak Tester | Power Driven Diesel
How to create your own boost leak tester under $8 dollars & how to test for boost leaks! - YouTube