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Wehrli billet MAF sensor weld bung for 2001–2007 LB7/LLY/LBZ 6.6L Duramax engines is CNC machined from 6061-T6 aluminum and ready to weld to custom aluminum intake piping. The pad is radius cut for 4" or 5" piping and includes an arrow marking proper airflow direction. It’s made in the USA and sized to accept the factory-style MAF sensor mounting for those GM applications.
Wehrli LB7 / LLY / LBZ Duramax MAF Sensor Aluminum Weld Bung
