Well that's a bubble buster after deciding to do an upgrade. Maybe he can return it and just get a tuner with a tune for the stock setup, should see much better results.
Yea these coyotes get maybe 4-5 hp at best from "tune only" intakes like Steeda, JLT, Airaid, etc. intakes for these cars are really 95% for looks and sound... Not saying its a bad mod, but don't expect power out of it since the factory airbox is technically a cold air setup... I would've made a set of axlebacks be a better first mod to give u a cool muscle car sound
There's a video floating around on the internet somewhere that proves CAIs on the new Mustangs may either do nothing or actually hinder your performance. Those "+20 HP" advertisements you see are a CAI + a tune (in this case, the tune is the only factor of increasing the performance).
The ONLY time an aftermarket CAI is needed, is for more airflow, for an application such as a supercharger. Your stock intake says "Cold-Air Induction" on the top for a reason. Send it back!
Well there is a difference, the after market cai's usually have higher air flow, a few mm bigger than the stock, stock on 13, maybe 12's idk, but the stick is 18 mm of air flow where as the after market for a k&n I think is 21 mm, so you are getting a little more air, but then again it's not that big of a difference
CAIs only help when they reduce the restriction of air. You guys are misunderstanding this concept entirely. Your engine is a vacuum and your intakes responsibility is to deliver said amount of air to the combustion chambers. When you reduce the number of bends in an intake or get larger diameter intake tubing then you decrease the time which it takes the air to get to the chambers. The only thing about a vacuum is that it can only suck in so much air before it peaks and the stock CAI meets the requirement for airflow:intake vacuum ratio. Adding the aftermarket CAI increases your intake tubing size which allows for greater airflow and ease of flow in high rpms when suction for air is highest and therefore you see the hp increase.
The only variable that negates your horsepower gain is the quality of air that is reaching the engine through your intake. You want the coolest, densest air possible for maximum efficiency and more horsepower. The stock CAI pulls air from outside the engine bay which delivers cooler,denser air than you receive from the open filter in your engine bay. Under your hood is HOT and your intake sucks in that air while you idle or drive low speeds, but when you are moving the intake will cool quickly and that is when you will be able to achieve closer to ambient intake air temps. So moral of story, the only time you will see benefits of a aftermarket CAI is when you are moving and in high rpms, and because you are not forcing air into the engine you will net very little gain because you aren't out flowing the stock intake. Ford engineers spent many hours finding the best way to make the intake and they aren't idiots. If there was huge room for improvement, we would have it from factory.
I'm not saying a CAI becomes forced induction, I'm saying it allows more air to be brought into the motor, like I said it adds about 3 give or take mm of air flow but that's it, I didn't say it did anything else
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