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Old 07-05-2010, 01:20 AM
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Given enough time, the manufacturer can come up with a case that a modification that increases HP or torque beyond their spec can contribute to any powertrain component failure.

But understand that their designs are conservative. For instance, it's a known fact that the transmission in my SRT8 can handle 500 HP and 500 lb of torque. The rear differential can't take much more than that.

But the engine only puts out 425/430 at the crank stock. They do leave ya some room to play with. A tuner is not going to give you huge increases in either value.
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