I don't have a stock muffler clip, but I have a clip with 4.8is mufflers before and after the headers.

4.8is mufflers without headers - https://www.youtube.com/watch?v=xUM0...ature=youtu.be
4.8is mufflers with headers - https://www.youtube.com/watch?v=fjIKys6Dljg

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2004 X5 3.0 6 Speed MT
Build Date - 09/03
156K Alpine White / Black
Premium & Cold Weather Packs, Nav,
Tons of lighting mods, 4.8is Exhaust, Headers, Eibach Springs, OEM 87's, Custom DME Tune, OEM Hitch.

2005 X3 3.0i - 100K - Blue water Metallic / Black

2005 X5 3.0i - 140K - Alpine White / Hellbeige 2