Callaway Double D Exhast Tips??

[NORCAL SS]

Guys wondering if anyone can help me out. I have a Trailblazer SS and changing the exhuast so that it exits on the center and looking if anyone can give me info. Id like to get the Callaway double D tips to fill the space where the trailor hitch is that i will remove. Here are the tips im looking at http://store.callawaycars.com/double-dexhaustsystem2005-2008corvette.aspx

Does anyone know where and if i can get only the tips.

Thanks guys

Tony

ps- Here are some vids of it in action http://youtube.com/results?search_query=blowntbss