Quote:
Originally Posted by nightmare
So . . . What about normal open air elements, like below? Are they a hindrance to an engine as well? I would think that an engine is going to perform more efficiently if it can breathe, and expel the spent fumes, better. Is it better to run a filter that is encased like the factory?
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This style filter is what we're comparing the tops to. The dome on the top creates an airflow that the carbs like, therefor more horsepower. The biggest horsepower gains are from the domed tops.