Hey Duramax owners, if you're dealing with loss of power, that annoying P0299 code, or worse fuel mileage, you might have a boost leak and not even know it! This premium turbo boost leak tester lets you pressure test your whole system up to 60 PSI to find exactly where you're losing boost. It's compatible with most Duramax engines from 2001-2016 including LB7, LLY, LBZ, LMM, and LGH models. The kit comes with a solid billet 6061-T6 aluminum end cap, 60 PSI boost gauge, ball shut-off valve, 150 PSI regulator, and a 5-foot hose so you don't have to lean over the engine bay. Just install it at the turbo compressor discharge, clamp it down, and use your air compressor to pressurize the whole system - hot pipes, cold pipes, intercooler, Y-bridge, EGR, all of it. Made in the USA with premium materials that are built to last. Seriously, once you find and fix those leaks, you'll feel the real torque your Duramax was supposed to have all along. Plus it comes with a lifetime warranty on any defective components. Your truck will thank you with better pulling power, improved MPG, and no more boost fluctuations!