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Nader 2) "There are many Gen III Viper owners who change out their spark plugs and wires very early in the life of the car. Do you see any benefit in doing so based on what you know about the stock plugs and wires? Are there any deficiencies with the stock pieces or are the aftermarket just that much better?
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The "factory" wires and plugs are selected based on several requirements. Are there better spark plugs available - sure! The original plugs are a good compromise between cost and performance and many other higher price plugs may perform better under some operating conditions. Be cautious about changing heat range of the plug, the original plugs meet our temperature requirements over the entire operating range of the engine - they have good anti-fouling characteristics at light load while not exceeding the maximum tip temps at full load/high speed. Many precious metal plugs as long as they have similar heat ranges should be fine and may offer some improvement.
Be very careful with aftermarket plug wires. Many wires do not have the EMI/RFI protection that is needed to not interfere with the operation of the ECU. You will almost surely have problems by installing a solid core wire! The standard plug wires wok very well and last a long time - save your money!