Product details:

Fits these Applications: All Turbo Vehicles One of the easiest ways to lose power is to have a simple leak in your system. The STM Boost Leak Tester includes a billet aluminum core with nozzle to test your system for leaks and ensure your set-up is solid. Includes your choice of STM reducing coupler to match your turbo inlet from 1.75" to 4" compressor and T-Clamps for a tight, burst-free seal.