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Air leak under partial throttle (VIDEO) - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
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Turbo Boost Leak Tester - Ford Power Stroke Diesel F-250 F-350 V8 6.0L 6.4L w/EXT Line & Shut Off Valve - TURBO BOOST LEAK TESTERS
RTH: GTurbo got lazy after highway drive, slow to build boost, lower boost levels than normal | Page 5 | IH8MUD Forum
![Strange howling or whining noise...boost leak? Invisible supercharger? - Miata Turbo Forum - Boost cars, acquire cats. Strange howling or whining noise...boost leak? Invisible supercharger? - Miata Turbo Forum - Boost cars, acquire cats.](https://www.miataturbo.net/attachments/suspension-brakes-drivetrain-49/38346d1333019751-strange-howling-whining-noise-boost-leak-invisible-supercharger-img_0985.jpg)