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Old 03-07-2005, 09:31 AM
mebert225 mebert225 is offline
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Re: Exhaust makes 'popping' noise when i let off the gas

the popping noise is from a lack of backpressure. all the vaccumm lines and emmission control stuff under the hood is set up for the stocl car specs. when you put headers or aftermarket exhaust you change the flow rate of the exhaust and that results in lesss back pressure causing the popping.