Hello,
I've tried the above suggestion to remove the code from the product name, with no success. My CSS also states .hikashop_product_code_main{ display:none; }
I am assuming that the problem is that I have 'Build Title Spans' enabled in the template, however, I am unable to disable the on/off switch, due to some kind of gantry bug (I think) with 2.5.4.... do you know of a way to manually disable this so I don't have to deal with the headache of now trying to figure out how to fix the gantry problem? Amazing how one tiny edit can take so many hours! 
So far, I love the cart! Just started working with it today, and it seems better than other options I've tried.
Thanks!