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The mounting bung is made of stainless steel(Stainless Steel 304 for corrosive environments, rigid and durable body design), easy to weld on O2 sensor parts, exhaust, headers, down pipes, etc.
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Install the weld bungs to replace or add sensor ports to any OEM or aftermarket exhaust or downpipe. Drill a hole and weld the mounting bung on.
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Universal Standard M18 x 1.5 metric threading, Sturdy and durable, easy to install!
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M18X1.5 thread adapter, confirm the product size before buying.