It is fraud. Its a scam that has been going around for a while now. I recieived emails like this on the last two cars I've sold. I've also read about other people running into the same thing. The cashiers check is counterfit. Good luck with the sale bro...
John
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2006 Trailblazer SS C-6 e-fans, 160 thermostat, PCMFORLESS stealth cam set up, ieatsrt8 intake, tuned by Precision Motorsports, transmission built by Sommers Racing and Performance