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Old 12-29-2014, 09:53 PM
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408 about 600hp at the crank planning a 200 shot down the road what do yall think 1 7/8 or 2'' kooks
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Old 12-29-2014, 11:45 PM
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Id go 2in header.. Thats what someone recommended me for my 408
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Old 12-30-2014, 10:33 AM
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1 7/8 would get my vote

Going 2" might give up a little low end power

600 crank hp is 550-560 to the wheels est.. 1 7/8 is plenty at this power level
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