RAM® Key Lock Knob with Brass Insert for B Size Socket Arms 19-20 BMW X3 M/X4 M (F97/F98) The mirror arrives ready to

The mirror arrives ready to bolt on

This prevents contamination and ensures the compressor and expansion device operate properly with the new core

Matte black finish

Due to the intake’s close proximity to the exhaust manifold

start the engine and drive normally

RAM® Key Lock Knob with Brass Insert for B Size Socket Arms 19-20 BMW X3 M/X4 M (F97/F98) The mirror arrives ready toOverview The RAM locking knob, includes a brass 1 4" 20 thread, for 1" (B size) socket arms; this allowing you to disengage the screwing of the knob. Once you have set your mount in the location you need, you can lock it in place and feel safe that your mounted device will stay right where you left it. **All Clearance and Open Box Deals are FINAL**