According to a boat dealer i was speaking with the EXT cat manifolds are now available on the 383...for 09 & only for Malibu..not MC 6L??? I was looking @ a 23lsv & comparing it to an xstar... so apparently these manifolds significantly increase the efficiency of the engine..as much as I guess you can expect from a 400hp highoutput v8... Who has them? what boat? engine size..and do you notice any difference in consumption...Fuel that is..not the beers your buddies drink while on your boat...haha as well how hard you are running the engine Just wondering as i search for a newer ride...what to narrow down the years and engine selections..if infact these EXT's are a key selling feature?? Any feedback you can offer is greatly appreciated
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