Step-by-step guides for boost leak testing, plus install instructions for every kit.
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Step-by-step install instructions for every kit we make.
Four guides. Pick the one that fits what you're working on.

The full walkthrough, from installing the tester to finding the leak.
Read the guide
What a boost leak costs you and the signs that you have one.
Read the guide
Where to mount the tester and what to cap off on an EJ.
Read the guideWhere the tester mounts on each engine and how much pressure to use.
Read the guideSlide the billet end cap over your turbo inlet or inside your flexible charge pipe. Secure with the included T-bolt clamp.
Connect a shop air compressor (2 gallons or larger) to the tire valve or air fitting. Start at 5 PSI with the vehicle off, then work up slowly. Never go past your normal boost.
Walk the charge path: charge pipes, intercooler, BOV couplers, vacuum lines. Leaks are immediately audible as a hiss.
Tighten a loose clamp, replace a split hose, or reseal the leak. Re-test to confirm.
Boost leak test on a twin-turbo Audi S7
Stuck on a step? Text or call 248-403-8512 for tech help.
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