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Old 04-09-2013, 06:26 AM
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vinniekq2 vinniekq2 is offline
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Im not sure how many decibles you are allowed or what engine you are working with?Sound pressure will go up with power. Many other things also contribute to engine noise,one being intake system.
It is possible to improve power and keep exhaust reasonable,,
define reasonable and describe the problem situation?

Think about using a much larger engine that is quiet IE: a stock 230 HP truck 454 is quieter than a 350 HP corvette.
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