Wide-fit adapters: Four stepped pairs cover 35–90 mm (1-3/8"–3-1/2") charge-pipes for most turbo cars & light trucks.

Controlled pressure: 0–6 bar gauge with regulator & shut-off valve to prevent over-pressurization during tests.

Find leaks fast: Pressurize intake/intercooler to pinpoint boost, coupler, or clamp failures before costly repairs.

Pro-grade build: Durable caps, reinforced couplers, and secure clamps for repeated shop or garage use.

Versatile use: Ideal for turbo diagnostics; also works for intake, intercooler, and some cooling hose checks.

Fitment Chart

(Universal tool—verify hose OD is 35–90 mm before use)

(Not exhaustive; shows common turbo applications within adapter size range.)

Dial in boost integrity with the Oni Tools Turbo System Boost Leak Tester. This 9-piece kit uses four pairs of stepped adapters (35–90 mm / 1-3/8"–3-1/2") to seal common intake and intercooler hose sizes on turbocharged cars and light trucks. Connect regulated shop air and read the 0–6 bar pressure gauge to locate hidden leaks at couplers, clamps, charge pipes, intercoolers, diverter valves, and more. A built-in regulator and shut-off valve help prevent over-pressurization while you isolate problem areas. Whether you’re a professional diagnosing drivability issues or a DIY tuner chasing lost boost, this kit speeds troubleshooting, restores performance, and protects turbos. Use it for routine checks after upgrades or service. Fits most gasoline and diesel turbo applications—verify hose OD is within 35–90 mm for best results.