Quote:
Originally Posted by Roffle Waffle
Doesn't ESS provide you with all the info/parts you need for the upgrade? I'd think they'd at least tell you HOW to update the fuel system to match their tune
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... i get the impression they dont REALLY want to do the 550 spec in the z4m platform if im honest, still i'll do whats needed, i dont think it'll hurt anyway to get the fueling system more robust anyway.... Were really pushing it with the stock unit imo.. what i dont understand is the CFR525 used the stock pump??
id love to get my hands on a stock fuel pump for the z4m to see if the unit is actualy different from the m3 unit.