'67 GTS w/exhaust tips???

http://cgi.ebay.com/ebaymotors/ws/e...80510888956&ssPageName=ADME:X:RTQ:MOTORS:1123

Seller says the chrome exhaust tips were correct for '67 GTS. I've always understood the tips never showed up 'til '68. He says Galen says they're correct.

Anyone know for sure?