【Compatibility】Intake port adapter for BMW N54, N55, N20 engines (1 series 135 / 3 series 335 / 5 series 535 / x5 / x6). 【Specifications】The adapter fits a 1 1/4" vacuum hose & up to a 3/8" blast nozzle while doing intake manifold walnut blasting on the intake valves.
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