This 3" Boost Leak Tester kit comes with 2 parts that mount on both of your turbo's compressor inlet flanges, one side is used to pressurize the system and the other is used as a cap otherwise the pressure from one side turbo will escape out the other turbo. You'll be able to test from the turbos through to the motor checking all leak points in between, including intercooler, clamped connections, and the many random potential leak points.
Comes standard with (2) silicon couplers, 30-PSI gauge, threaded tire valve stem fitting and one set (4) of stainless steel T-bolt clamps. You can choose the options for other fittings or gauge readouts.
The Top-mounted boost gauge will allow you to easily read the pressure in the system while testing without having to run into the driver's seat to read the boost.