Correct the dual pipe tip is what I am looking for.Gary are you talking about a dual cut out bumper for the C70 similar to the 2000 V70R? If so, the answer is no. My guess is you're talking about a dual pipe tip for the single exhaust through the cut out on the driver's side of the bumper.
This is what was offered in the Accessories catalog for the S70, V70, C70, 850 and it's listed with different part numbers only for the 854/5 S/V70 based on year and turbo status. I'm assuming based on your question you've attempted to fit an OEM dual pipe in the C70 cut out and it didn't fit?
As for PM's assertion of the dual cut-out bumper I've never seen that, would love to see the catalog that includes it as the only ones I've seen have the universal FR (French), GB (British), NL (Dutch), DE (German) offerings.