Hi,

You car looks great! I've just done exactly the same today!! I bought 2 oval stailess steal tips and had someone weld them onto my rear silencers. I then painted inside them with heat resistant paint.
I felt the same as you, i didnt want to mess around with the original system and wanted the 4.8 look!
I will get some pics up for you to see if you dont mind, dont want to steal your thead though!

Cheers,
Roy.