Fix Boost Leaks on your Turbo Engine and RESTORE POWER, MPG and prevent turbo failure! This easy test is often overlooked on a turbo engine, and just as important as doing spark plugs and other maintenance. Perform the boost leak test by installing the tester on the turbo inlet connect your air compressor and with the engine off you can detect leaks in the whole intake charge system. Fixes P0299 codes. Specializing in Boost Leak Testers this Shop kit features premium components to fit size from 2" to 4" including 2”, 2.25”, 2.5”, 3", 3.25", 3.5" & 4". The most common sizes for smaller OEM and larger frame vehicles for both oem and and aftermarket turbo chargers. 2” and 3" Billet 6061 CNC aluminum end cap anodized and anti-slip beaded edge with 30 PSI (2 bar) boost gauge, both universal tire schrader valve and NPT compressor fitting, Full 304 SS T-bolt Clamps, and high quality silicone hoses. Exactly what you see in the photos! 3-Year warranty on all parts - 100% Customer satisfaction is our goal! Drop it and break a gauge or over tighten a T-clamp, simply reach out to us conveniently via text and we will get back to you promptly and send out new parts!