Which CAI do you guys think is the best for the most horsepower gain. The only ones I'm finding for my 3 are AEM, K&N, and INGEN. Are there any others you would recomend, and if not which is the best of the three brands?

 

with the popularity of the 3 and the wide use of these new duratec engines I'm sure you're going to have no problem finding other choices for intakes in the near future. It has been my experience that ebay will generally carry knockofs that are identical to the name brands for 1/3 of the cash. Maybe you should just hold off for a few months and see if something cheaper shows up.

 

Look for one on e-Bay and save yourself some money. I hope you are not expecting much in the HP department, 'cuz it ain't there.

 

https://www.mazda3club.com/3rd-gen-engine-drivetrain-57/injen-cai-vs-ebay-cai-you-decide-38674/

Here is a very good thread on just this topic. I think the ebay CAI is the way to go and so does alot of other people. I got mine in and I have the same performace as the name brands but I only spent 69 bucks, not 270!

 

hughes thats for the 2.0L protege engine not the newer duratec engines....

 

yea i noticed it after i posted. I can't tell what kind of car he has.

 

"The only ones I'm finding for my 3 are AEM, K&N, and INGEN"

punt!