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  1. ZHP specific OPN (Oil Pump Nut)

    Driveline, Engine & DME Tuning
    I got curious about this topic after reading aggieE46's post: Complete thread: http://forum.e46fanatics.com/showthread.php?t=710223 :blah: After reading this thread I didn't want to wait around for an answer so I ordered up both parts at a grand total of about $2 from Tischer (I needed a bunch...
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