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Great question Christopher, these are a equal length style which means each tube is the same length and the theory behind that design is that each cylinder would have the same amount of back pressure and therefore created more horsepower. They do make more horsepower, but it is such a small amount it is not worth the trouble that you have getting to the spark plugs. I hope that helped you out.
Answered by BRYAN M. from TROY | Comment 0 0
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