MPx 2.5 Boost Leak Tester, Turbo Accessories: Store Name
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
How to create your own boost leak tester under $8 dollars & how to test for boost leaks! - YouTube
Boost leak test - RX7Club.com - Mazda RX7 Forum
Universal System Boost Leak Tester | Power Driven Diesel