Hi, I need to know what is the real parts number for the Titanium Shift Knob, because I had one here, and the number is 54102-S2A-000, and I think it is not the titanium one. And if someone can help me, how heavy is the titanium one approximately? and how is the easiest way to distinguish the titanium from the original aluminum one? thanks a lot.

this might help... if not, call them- they will most likely have your info: http://www.honda-accessories.com/S2000/s2shiftknob.pdf

I weighed mine the other day, and it was 242 grams. I think you'll instantly recognize the difference if you have the two together. If yours looks a very slighly reddish color, it's probably Ti. Aluminum looks like - well, Aluminum.

I picked my 2001 Spa Yellow yesterday and I had purchased a Titanium knob from H-A accessories for it. I had the tech install it before I picked up the new car. I have to agree with Greg S. the heavier knob adds to the shifting pleasure with this car.