Your Cart Is Empty
Video
Images
Showing 1 - 5 of 5
Video

We’re sorry. The information you have requested is temporarily unavailable.



AEM Air Bypass Valve Part #20-403S Customer Reviews

Average Rating

8 Customer Reviews

aem air bypass vavle

Reviewed by Jose R (EMPORIA, KS) Reviewed for a 2006 Chrysler 300 — Sep 12, 2012 9:39 AM

Was this review helpful?
Yes   No
1 of 2 people found the following review helpful.

Overall a good product which is very helpful. I believe its a lil pricy for the size but worth the buy. I recommend for everyone that has a cold air intake.

Excellent!!

Reviewed by Federico R (Tuscaloosa, AL) Reviewed for a 2000 Mitsubishi Galant — Apr 07, 2012 9:52 PM

Was this review helpful?
Yes   No
2 of 2 people found the following review helpful.

Like everything about the bypass valve. Works like a charm

Great Product (small cut in power)

Reviewed by Andrew B (Hollywood, MD) — Aug 27, 2010 4:42 AM

Was this review helpful?
Yes   No
2 of 6 people found the following review helpful.

Having this is lifts a HUGE worry off my chest about sucking in water and trashing my engine. Great product easy to install only thing I see wrong is I noticed a slight change in power when accelerating but I am willing to deal with it because it will pay off in the long run while driving in wet conditions!

eazy acest to get it from y7ou guys

Reviewed by Jose R (Santa Monica, CA) Reviewed for a 2003 Nissan 350Z — Jan 29, 2010 1:45 PM

Was this review helpful?
Yes   No
3 of 7 people found the following review helpful.

good work guys

aem airbypass

Reviewed by oliver j (Houston, TX) Reviewed for a 2003 Nissan Sentra — Nov 17, 2009 7:50 PM

Was this review helpful?
Yes   No
3 of 9 people found the following review helpful.

i bought the air bypassvalve cause i really need since everything time it rains out here it get flood it i need something to protect my motor and so i choose to buy

If you have an AEM cold air intake, you have to have this too

Reviewed by Raymond P (Klamath Falls, OR) Reviewed for a 2003 Acura CL — Apr 25, 2008 10:47 PM

Was this review helpful?
Yes   No
7 of 9 people found the following review helpful.

By relocating your air filter under your front bumper, you put your engine at risk. This is really cheap insurance agaist water getting into your engine. But, this thing is thin and cheaply made. It's a good thing it installs easliy because it will last you about a year before the engine heat and vibration rip it in half and you gt to put on a new one, just like I get to do every year. Don't bother with the instructions, I think they are in Chinese. Just look at one in a photo, cut your pipe and put it on. If you can tie your shoes, you can install this.

a must have

Reviewed by Joseph C (Midwest City, OK) Reviewed for a 1998 Honda Prelude — Sep 13, 2007 11:08 AM

Was this review helpful?
Yes   No

this aem bypass valve is a must have item for your hard earned investment. the install is easy and the directions are very detailed and easy to follow. why take a chance with hydro-lock, when this product protects against all elements. autoanything has the best price and fastest shipping on the net and i've done alot of shopping around. rest assured next time you're driving in the rain or snow that you are protected with the best, j. cox, oklahoma city,ok

A must have

Reviewed by Major K (Chula Vista, CA) Reviewed for a 2006 — Dec 26, 2006 1:34 PM

Was this review helpful?
Yes   No

This valve takes the worry from hydro lock in case the system is emerged in water. It is a must. Installation is a bit tricky. Therefore, I suggest dealer instillation. It performs as expected and there is no loss in power.

AEM Air Bypass Valve - 20-403S

(8)
  • $61.99
  • 1-Year Lower-Price Guarantee
  • Free Ground Shipping
  • Overnight Shipping Available: $4.99
  • Ships By 12/18

Options

  • Part Size:
    3.00" Inlet
  • Part #:
    20-403S
  • 3.00" valve inlet (fits intake pipes with a 3.00" outlet diameter)
ADD TO CART
Have a Question?
Have a Question? Ask a product expert! (800) 874-8888 Live Chat