Quote:
Originally Posted by roadkillrob
Someone had a post on here showing that the stock airbox flows ok up into the high 300 hp range, then you need to go to dual cones or something else to get enough flow to keep up, but for most people with just a procede or JB3, the stock airbox works just fine - you really have to get to downpipes and other mods to really need more air.
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I was able to get 400 whp with the stock air box on a dyno.