I think this has been discussed about 2000 times already and if this becomes another "Oil Temp" thread, it's gonna be locked before the end of the day. So, in that case....IBTL.
Also, your "buddy" is a moron......thats why there is something called a "break-in" period. Even after that, who drives a car to the ground? He needs one of these:
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SpinTech Mufflers, Airaid CAI, JBA H-Pipe, Lethal Performance Over Axle Pipes,
MMD Quarter Panel Louvers, Cervini's Ram Air Type IV Hood, Carbon Fiber Radiator Cover, GT500 Rear Valance, Quad Exhaust Tips