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AEM Cold Air Intake System Part #21-488C Customer Reviews

Average Rating

5 Customer Reviews

Highly Recommended

Reviewed by Aaron B (NEW CASTLE, PA) Reviewed for a 2008 Mazda 3 — May 21, 2013 6:03 PM

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If your serious about tuning your ride I highly recommend you purchase AEMs CAI.. Great sound, appearance and performance. I haven't had it installed long enough to tell if I'm getting better mpg, but there is a noticeable hp increase right from install, and I suspect an increase in mpg once I get a few tanks through. I did the install myself and it was not to bad. The hard part was removing the factory air box. Total install took about 3 hours(2.5 of that was removing factory air box).

AEM intake review

Reviewed by Chad G (Westminster, CO) — May 31, 2011 6:08 AM

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Great looking intake system. this system is very simple to install. I had one problem getting to a lower filter box bolt on the removal of my old intake. This system is not too loud but it does sound different if you step on the gas. Personally I like the new sound better. I haven't had the system long enough to know how much it has helped with gas mileage. It does seem to have helped horsepower I cruise down the highway at 80mph and sit at 3000 rpm.

Worth every penny

Reviewed by Chris R (Pennsburg, PA) Reviewed for a 2005 Mazda 3 — Apr 22, 2010 7:24 PM

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6 of 6 people found the following review helpful.

Overall this is a fantastic way to add some extra horsepower, for a fair price. The actual installation of the part was very very easy, AEM makes these intakes to fit your particular car perfectly. Taking out my stock intake was a huge pain, but without the directions that AEM provides, it would have been twice as hard and aggravating. I noticed a very significant power gain especially in the 3,000-5,000 rpm range, and it looks awesome to boot. For those of you worried about hydro locking, with the Mazda3 at least, it really is not an issue. After seeing where AEM relocates the filter, unless you drive headlights deep through water, hydro locking is not worth a second thought. For those of you who feel that they may be driving through a lake sometime soon buy a bypass valve, and an Injen hydroshield.

Awesome Intake

Reviewed by Brandon M (Anderson, IN) Reviewed for a 2005 Mazda 3 — Aug 11, 2009 9:16 AM

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5 of 5 people found the following review helpful.

The installation was easy (the worst part was getting my factory intake off). It looks and awesome. I definately noticed the extra low end torque. The best part is how it sounds.... makes my engine sound mean!

Good to save some gas.

Reviewed by Mitch H (Norman, OK) Reviewed for a 2007 Mazda 3 — Sep 23, 2008 5:54 PM

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4 of 4 people found the following review helpful.

I bought a new Mazda 3 and put this on it along with straight exhausts. Combined, I spent ~ $340. With just the cold air intake, power gains and better mileage are most notable on the highway. After about a month, I'm getting about a 7-8mpg gain on the highway. These modifications pay for themselves within a year. I had to take my car to a mechanic to install the cold air intake (I didn't have blocks to put it on), and installing both took about an hour of labor (+$65).

AEM Cold Air Intake System - 21-488C

Cold Air Intake System
(5)
  • $201.99 - $575.99
  • Free Shipping
  • Ships By 5/25
  • What Do You Drive?

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  • Color:
    Gun Metal Gray
  • Part #:
    21-488C
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