89PCD3

i would like some recommendations/suggestions/opinions on which cold air intake i should purchase for my 2005 mazda 3. it has the 2.3 liter engine and it has an aftermarket exhaust and a manual transmission-if any of those factors make a difference. i'm looking for the cold air intake that can give me the best increase in both horsepower and fuel mileage.

gron

when it comes to cold air intakes, you pay for the name....its just pipes and a filter, so go cheap....if you want decent horsepower gain, it wont come from a cold air intake....

d-machine

not really becasue the bends are calculated.. if they are not right the air flow will not be correct throwing off the maf readings... in my opinion one of the best is fujita, its cheaper than most and you get really good gains

gron

well if you wanna get right down to it, here goes....if im not mistaken, AEM cai's for the 05 mazda3 2.3L have ABSOLUTELY NO 90-degree-or-less angles on them (travelling air's worst enemy), so theirs would probably get you the most gains, but make no mistake, youll pay out the *** for it....but what i originally meant was, do you really care if you HP increase is, say, 1.8 instead of 2.5? since you chose N/A as your means of modification, youll need a helluvalot more mods than a cai to get noticeable gains....