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yeah, 550's on a stock motor and tune will suck. you wouldnt even get a power increase. You have to understand, that just throwing in bigger injectors isnt going to give you horsepower. It's a combination of things, air, fuel and spark all work together. think about getting like a bigger intake manifold, larger cams, THEN bigger injectors. let in more air so the injectors actually have a purpose instead of washing your cylinder walls.
Last edited by louisdaboois; 03-23-2008 at 10:17 PM..
Reason: *edit* btw, 550's are kind of overkill on my T25 KA-T, to give you an idea.
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