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This item is eligible for return within 30 days of receipt
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Nov 18 – Dec 3
At a glance
- Condition
- New
- Model
- AEM-20-401S
- Dimensions
- 6.1 x 6.3 x 3.7 in
- Weight
- 8 oz
- Exterior Finish
- Painted
- Inlet Connection Size
- 2.5 in
- Item Type Name
- Air Intake Components
- In the box
- Air Intake Components
Features 5
- 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 aempower website.
Description
AEM produces a variety of accessories and miscellaneous parts.
Specs 19
| Brand | AEM |
|---|---|
| Item dimensions L x W x H | 6.1 x 6.3 x 3.7 inches |
| Exterior Finish | Painted |
| Inlet Connection Size | 2.5 inches |
| Outlet Connection Size | 2.5 inches |
| Global Trade Identification Number | 42 |
| Unit Count | 1 Count |
| Manufacturer | AEM |
| Number of Items | 1 |
| Brand Name | AEM |
| Model Number | AEM-20-401S |
| Manufacturer Warranty Description | Manufacturer warranty |
| UPC | 840879006242 |
| Item Type Name | Air Intake Components |
| Item Weight | 8 ounces |
| Number of Pieces | 1 |
| Manufacturer Part Number | 20-401S |
| Item Dimensions | 6.1 x 6.3 x 3.7 inches |
| Size | 2.5 Inch |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Nov 18 – Dec 3
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Fragile to say the least
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.
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Reviewed in the United States on May 29, 2009 by F. Lambert
Good insurance for your engine.
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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Reviewed in the United States on October 4, 2009 by Doug S
Four Stars
Using this will keep the water out of engine and it still get air to run
Reviewed in the United States on September 18, 2014 by George H.
Failed
I thought this would be great for my cold air intake. After 1 or 2 years the rubber ripped apart and my engine was now sucking in non filtered air...
Reviewed in the United States on January 3, 2014 by Jeremiah J. Guinta
but it was just as good as new
Purchased used, but it was just as good as new.
Reviewed in the United States on June 18, 2015 by agentzero
Perfect match for my Honda
Perfect match for my Honda. The old one was coming apart
Reviewed in the United States on September 4, 2014 by Don