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Re: Power problem.
If the headers are allowing greater exhaust escape, it is possible that your back pressure is being effected. If there is reduced back pressure, this is often accompanied by reduced low rpm power exchanged for a high rpm advantage. More air provided by an intake cold or otherwise could possibly make the difference. Underdrive pulleys could possibly increase your power but there's less energy supplied to the alternater, ac, and power steering.But start with a tune up.
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