...replaced the Panoramic Sunroof rubber seal (actually my excellent new mechanic did it for $90 and I supplied the BMW OEM part# 54 10 7 199 533 that I got from ECS Tuning for $39.42 including shipping = $129.42 for the entire job!!). Looks awesome and is said to be designed as much more durable than the factory OEM seal. Here's the link to the seal for those looking to do this job (it's even LESS $$$ NOW!) as it fits my 2005 4.8is E53 PERFECTLY:

http://www.ecstuning.com/Search/54107199533/ES260387/

Next up = EXHAUST UPGRADE (pics & audio / video coming)

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2005 BMW X5 4.8is (E53)
LeMans Blue / Black Leather Interior (Comfort Seats) / All Packages / aFe Stage 2 Cold Air Intake / Software Update / Suncore Industries E53 Air Suspension-To-Coil Springs & Struts Conversion Kit w/Gas Shocks & Warning Message Removal Tool