FS: (NY) Yellowbox Speedo recalibrator (NB)
 

Picked this up to use with a 3.6 R&P – because even with the 'correct' speedo gear the speedo is still way off.

Ended up selling that r&p, and the MSM's up for sale too, so I'm absolutely certain that one of you can put this to better use than I can.

$100 shipped in the continental US. If paying by paypal, I only ship to confirmed addresses.