K & n filter in factory air box - Mustang Evolution

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Old 12-26-2013, 08:56 PM   #1
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K & n filter in factory air box

Do y'all guys think putting k&n air filter in the factory air box help or is it best to change the whole set up with airaid?
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Old 12-26-2013, 08:57 PM   #2
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The factory air box is honestly just as good as aftermarket ones for the 5.0. Its mostly for looks, there are just a few that will pull a slight bit more air than factory.
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Old 12-26-2013, 08:57 PM   #3
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I would change the whole air intake. Go either jlt or k&n. You'll see the most results out if changing the whole intake, which is why it costs so much. U may see 1-2 hp gain with the air filter and 5-10 hp gain from the whole new air intake
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Old 12-26-2013, 08:57 PM   #4
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K & n filter in factory air box

Thanks
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Old 12-26-2013, 09:13 PM   #5
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Little to no HP gain with the CAI; don't waste your money and buy this instead AEM 28-20431 DryFlow Air Filter from amazon. I traded my CAI for a roush exhaust.
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Old 12-27-2013, 02:46 AM   #6
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If you're looking for a good power to cost ratio, put an aftermarket cold air intake low on the list. Buy either an oiled or dry drop-in replacement and call it a day as far as air induction goes. Spend that $300 on other engine upgrades.

One day I will buy Steeda's cold air intake because I think it's the best and looks good and also reuqires a tune (ones that don't are a waste), but I'm in no rush for it.
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Old 12-27-2013, 03:45 AM   #7
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Quote:
Originally Posted by HPFury View Post
Little to no HP gain with the CAI; don't waste your money and buy this instead AEM 28-20431 DryFlow Air Filter from amazon. I traded my CAI for a roush exhaust.
Yup! Best filter ever lol. Little to no maintenance and clean up with water. My car made 428rwhp with the stock Cai and AEM filter but a full exhaust with a tune.
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Old 12-27-2013, 06:33 AM   #8
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CAI's are over rated, especially when it comes to the Mustang. The stock air box flows as good as 90% of the CAI's being sold today for the mustang. Now if you want looks or sound, then by all means buy a CAI. But don't buy one and expect the claimed 10-12 HP gains with a CAI alone. If you buy a free flowing exhaust, and a tuner (tuner is the best bet), then you'll see HP and TQ gains.

Your current air box flows just fine. It can be made to provide the sound that a CAI produces by simply removing the muffler off it's side, and fiberglassing the hole shut, then repaint.

But be quiet, be very quiet. The folks that make CAI's or the ones that sell them don't want you to know this. They sell kajillions of these to late model Mustang owners to those who don't know.
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Old 12-27-2013, 07:27 AM   #9
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Quote:
Originally Posted by HPFury View Post
Little to no HP gain with the CAI; don't waste your money and buy this instead AEM 28-20431 DryFlow Air Filter from amazon. I traded my CAI for a roush exhaust.

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Old 12-27-2013, 07:36 AM   #10
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Looks to be.
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Old 12-27-2013, 12:03 PM   #11
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That is the one that I just bought from amazon. @zlwhat please post the model number of your as it looks like it has more surface area.

---------- Post added at 12:03 PM ---------- Previous post was at 12:01 PM ----------

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Yup! Best filter ever lol. Little to no maintenance and clean up with water. My car made 428rwhp with the stock Cai and AEM filter but a full exhaust with a tune.

What brand and model number is this?
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Old 12-27-2013, 01:05 PM   #12
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Here is the one that zlwhat posted AFE Air Filter - AFE30-80179.
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Old 12-28-2013, 08:40 PM   #13
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Bucko idk what world ur living in but there's been proven dynos that give more horsepower from using an aftermarket CAI
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Old 12-29-2013, 01:01 AM   #14
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Bucko idk what world ur living in but there's been proven dynos that give more horsepower from using an aftermarket CAI
I'm sure he knows this.

Edit: I'm sure he knows about the minuscule gains from an aftermarket CAI on the 2010+ GT's and 2011+ V6's.
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Old 12-29-2013, 01:36 AM   #15
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Bucko idk what world ur living in but there's been proven dynos that give more horsepower from using an aftermarket CAI

What was the air temperature on both days? Humidity? From a good drop in temperature and change in humidity your car can pick up quite a few ponies. Not saying your lying about that, but there are many many factors that affect dyno readings.
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