Just got my letter yesterday and I was wondering is there a time frame on when the car needs to be in by? If so how long do I have?

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Team Solstice 2008

Ordered 11/12/05
Black, manual trans, Premium package, power package, convenience package, floor mats, AC, XM radio, LSD, and Polished Wheels Produced 6/1! VIN:18718

Mods: Fujita CAI, Stubbie Attenna, Lil Chromies, Third Brake Overlay, 35% Tint. Solo Headers, Solo Exhaust.