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Friday, July 30, 2010

AEM 20-401S 2.5" Air Bypass Valve

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Product Details
AEM 20-401S 2.5" Air Bypass Valve

AEM 20-401S 2.5" Air Bypass Valve
From AEM

List Price: $68.70
Price: $54.96 & eligible for FREE Super Saver Shipping on orders over $25.


Availability: Usually ships in 24 hours
Ships from and sold by Amazon.com

5 new or used available from $46.99
Average customer review:

Product Description

AEM’s patented Air Bypass Valve virtually eliminates the chance of hydro-lock in the event the filter of your AEM Cold Air induction system becomes submerged in water. On most systems, the valve installs along the upper portion of the inlet pipe and shuts down induction at the filter when it becomes submerged, rerouting air through its external diaphragm to keep water out and air flowing in. Check with your dealer or call AEM for more information on air bypass valve installation locations. The AEM Air Bypass Valve is C.A.R.B. exempt on AEM Cold Air induction systems only and is NOT for use on forced induction vehicles. Patent #6,394,128.

Product Details

  • Amazon Sales Rank: #25304 in Automotive
  • Brand: AEM
  • Model: 20-401S
  • Dimensions: 3.00" h x 5.00" w x 5.00" l, 1.00 pounds

Features

  • Virtually eliminates chance of intake system ingesting water if filter becomes submerged
  • Installs along upper portion of AEM intake systems with minor modifications
  • Patent #6,394,128
  • Complete hardware and installation instructions included
  • For a cross reference chart to see which Bypass Valve fits your Cold Air Intake System please visit www.aempower.com

Customer Reviews

Fragile to say the least3 I purchased this product for my AEM Cold Air Intake system to elmiminate the chance of hydrolock, a condition that occurs when your engine ingests water, which cannot be compressed like air, causing damage to your piston rods. Unfortunately my order arrived damaged, with a small tear in the foam housing of the valve so I did not have a chance to install it. I would like to give a few tips to check before purchasing this product though. First off, this valve is large it is about 2 times the size of your intake pipe and cannot touch anything after it is installed, so make sure you have the clearance around the pipe to ensure that it will fit. Secondly you will have to cut a section of your intake pipe, or have someone else do it, either way you probably don't want to purchase this if you are not comfortable with making this modification. Although I had problems with my product I am in no way suggesting that you will. The damage to mine was in shipping, not bad manufacturing and I would like to recommend this as a worthy addition to the Cold Air Intake System. Good insurance for your engine.5 Seems very well made like all AEM products, not the easiest install because you need to remove the air intake and cut out a section to fit the bypass valve. Make sure you install your CAI first to find the right spot to fit this, also make sure to remove all the shavings good from cutting the pipe if not all that crap goes in your engine and will be detremental to the engine. I do not know if it works yet and hope I don't need to test it but its good insurance just in case. I have mine installed on an 03 Accord i4 w/ 2" drop and an AEM CAI, I installed the valve on the pipe behind the battery, fits good, looks good.

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