DPTOOL Turbo System Leakage Tester Turbocharger Air Pressure Guage Cooling System Intercoolers Radiators Hose Leaks Test with Regulator Manual Valve 1.38''-3.54''

It’s a great set of finding a vacuum leak on any type vehicle any type of engine that has an intake system

ADDENDUM: Used the 2nd to the largest "cap" on a Subaru WRX right after the MAF sensor pipe.It had no problems plugging the intake coupler and showed no signs of leaking using a smoke machine pushing 0.5psi of pressure.Satisfied with it's performance, especially cheaper than the Lisle set.I used to have a set of those Autoline Pro yellow plastic caps, but one cracked on me after only using it a handful of times - maybe 3 - 4 times.So I was looking for a more durable option for plugging mostly MAF intake tubes and turbo inlets, so they are the larger 3" - 4" I.D. sizes.I first came across the Lisle 69910 set, but this is priced around $200!I came across the BILITOOLS sets, which were half the price, but I wanted to see if I could find something cheaper...I came across the OIMERRY set - now we're talking; we're under $100 now.Then I came across this DPTOOL set, which is slightly cheaper.The BILITOOLS / OIMERRY / DPTOOL sets all come from the same factory - just stare at the pics really carefully.So you're paying extra for the name (which don't make any sense, since they are all China off-brands) and / or different color plastics...Hey, color doesn't bother me, so I just wanted the cheapest one.I don't understand why the reviews are so bad with this DPTOOLS set, versus the BILITOOLS and OIMERRY set - they are all basically the same thing.I see the bad reviews about the fittings leaking, but I expect it for the price - a little sealant / threadlocker will fix that in a jiffy.For the sub $100 price for this DPTOOL set, it's a bargain!

The air connection , bad material, bad craftsmanship, bad design, was trying to remove the connection fitting but couldn't, its super tight , everything broke &bend when removing the connector

The plugs are hard plastic creating sealing issues going into the aluminum intake pipes.

bad product wasted my money the valve dont work