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NEED HELP!!!!!!!!! B20 NON-VTEC STOCK.....4-2-1 HEADER (2 1/4) OR JDM 4-1 (2.5)???

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Old Mar 26, 2007 | 10:14 PM
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JDM91EF2
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Default NEED HELP!!!!!!!!! B20 NON-VTEC STOCK.....4-2-1 HEADER (2 1/4) OR JDM 4-1 (2.5)???
WHICH ONE WILL BE BETTER AND WILL GAIN THE MOST HORSEPOWER???
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Old Mar 27, 2007 | 07:50 AM
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4-2-1 will probably net more useable power
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