A boost leak tester caps your turbo inlet so you can fill the intake with shop air and find leaks with the engine off. Ours are billet aluminum, with vehicle-specific kits you won't find anywhere else, plus universal sizes from 1.5" to 6".
Clamp the tester on the turbo inlet, add shop air, and spray soapy water. Bubbles show you the leak.
Vehicle-specific testers are what we're known for. Pick your make to see every kit that fits.
Used boost leak testers at a discount. Limited quantities.
Shop kits bundle the sizes you see most, from 2" small-frame to 6" big-turbo inlets, so you're not ordering a tester per job.
"I bought one specifically designed for my 2002 Audi S4 from TurboBoostLeakTesters.com."
"The kit includes everything I need and is of good overall quality."
"A cost-effective alternative to the OTC 5039 Charged Air Cooler Tester."
Found a boost leak in under 10 minutes that my shop couldn't find for two weeks. The aluminum end cap sealed perfectly on the turbo inlet — not a hint of leak past the clamp. Worth every dollar.
I'm a diesel tech and we use these on Duramax trucks every week. Build quality destroys the cheap China alternatives — those crack under 30 PSI. Bought three kits for the shop. Zero complaints.
BMW was throwing boost codes and running rough. This let me pressurize the whole charge system in 5 minutes. Heard the split intercooler hose immediately. Problem solved in one afternoon.
A boost leak tester is a cap that clamps onto your turbo inlet, or the intake pipe in front of it, so you can fill the intake with shop air while the engine is off. With the system under pressure you can hear and find leaks in couplers, charge pipes, the intercooler, the throttle body, vacuum lines and the BOV. Boost leaks are the most common cause of a P0299 underboost code, lost power and poor fuel economy, and they make your turbo spin harder than it should.
Every Turbo Boost Leak Testers kit is CNC machined from billet aluminum and comes with a boost gauge, so you always know how much pressure is in the system. Choose a kit built for your exact vehicle, or a universal tester in any size from 1.5" to 6". Our best seller is the 4-inch universal boost leak tester, for any turbo inlet or intake pipe that measures 4" across the outside.
Every tester carries a lifetime warranty, orders ship the same day, and tech help is a text away at 248-403-8512.
