HP Whizzer Coil

[atombikes]

OK New Whizzer experts- Here's a question for you.

What's the story with these "HP Racing Coils"? Anyone know anything about them?

http://www.ebay.com/itm/High-Performance-Racing-Coil-That-Fits-1999-Thru-2008-Whizzer-Motorbikes-/301086845950?pt=LH_DefaultDomain_0&hash=item461a2cabfe