Is there a warranty for work performed at the dealer? For example if I had CPO work done in March how long would that work have a "warranty"? Has anyone had previous work re-done months later for no charge?

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2005 BMW X5 4.4 Sport Upgrades:

Dinan Cold Air Intake
Dinan Stage II Software
Akebono Euro Cermaic Pads
Brembo Rotors
Titan Silver Metal Gauge Rings
DICE IPOD Module
Hardwired Passport 9500ix Radar/Laser Detector