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Product Details

Weapon-R Secret Weapon Air Intake Systems

Secret Weapon Short Ram Air Intake System by Weapon-R®. The Secret Weapon Air Intake System uses patented technology to feed the engine 3 times as much air as other systems. As a result, engine performance is increased more than with any other system available.

Weapon-R - CatalogWeapon-R - Air FiltersWeapon-R - Dragon Air Intake Systems


Filter Cage Finish: Gunmetal
Filter Color: Black
Tube Finish: Polished
System Type: Ram Air Intakes


  • Patented technology increases airflow 3 times more than conventional systems
  • Each system is tuned to maximize engine performance output
  • Every system includes the revolutionary Secret Weapon Air Filter
  • Dyno-tuned air intake pipe constructed of CNC mandrel-bent 6061 aluminum for smooth airflow
  • Comes complete with all necessary mounting hardware and comprehensive installation instructions
  • All Weapon-R foam air filters are backed by the Weapon-R Million Mile warranty

To create an air intake system with the highest airflow possible, the engineers at Weapon-R experimented with basic laws of physics. They found that by creating two different air velocity profiles in the intake tube, both traveling at different speeds, it increased overall air speed and volume to the engine, naturally feeding the engine 3 times more air than a conventional air intake system. To implement this patented technology, Weapon-R CNC mandrel-bends 6061 aluminum to the desired shape, and then polishes it to a show quality finish. The intake tube is then matched with Weapon-R’s Secret Weapon air filter. The Secret Weapon air filter features a tuned velocity stack to increase velocity and decrease turbulence. The dramatic increase in airflow results in a greater increase in engine performance than would be possible with any other air intake system.

Every Secret Weapon Air Intake System comes with everything necessary for installation including comprehensive instructions.

Weapon-R® Ram Air Kit II turns your air intake system into a Ram Air Intake. The Ram Air Intake brings cooler air to your intake system. Cold air is denser and contains more oxygen and cooler engine air inlet temperatures result in more power. Furthermore, the Ram Air tube is made from a high temperature fire resistant plastic, to resist heat soak which robs horsepower from your engine. The Ram Air Kit is easy to install. Just connect the hose to the top of the air filter, mount the velocity stack in the lower part of the grille and attach the hose.

Weapon-R® makes high quality performance parts, at affordable prices, for sport compact cars. All products are carefully designed using the latest computer simulation and modeling techniques, followed by extensive dyno testing. Finally, all parts are rigorously street and race tested to make sure they’ll perform flawlessly in your car. Weapon-R draws on over a decade’s experience, involvement in various forms of motor sports, and their commitment to research and development, to bring you the highest quality and best value performance parts in the industry.

Warranty Information

Weapon-R Products are covered by a limited lifetime warranty to be free from defects in material and workmanship from the date of purchase by the Original Purchaser. This warranty does not apply to any Products that have been subjected to misuse, mishandling, misapplication, neglect (including but not limited to improper maintenance), improper installation, or alterations.

Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

Product Reviews


Every Customer can leave a review about our service and the product that was purchased. In order to leave your review for your new product, please follow the link in the email you receive after completing your purchase. You can rate appearance, ease of installation, price/value and product quality.

Weapon-R® - Secret Weapon Air Intake System
Weapon-R® - Secret Weapon Short Ram Air Intake System
Average Rating: 4.6 of 5
4.3 of 5
I put the Weapon-Ron my 04 Grand Prix GTP, what a difference in the sound, it woke up my supercharger.
JPosted by (Fort Collins, CO) /
2004 Pontiac Grand Prix
Was this review helpful for you? Yes
5 of 5
Love It
This product is wicked very clean looking i'm definitely purchasing another one for my other vehicle the installation was pretty easy at the end it was all worth it.
APosted by (Wilmington, CA) /
2003 Acura TL
Was this review helpful for you? Yes
5 of 5
Fantastic Product
This is a wonderful intake. Weapon-R really stepped up. I was debating whether or not to get this one, or the Injen short ram, and I couldn't be happier with my decision. It sounds amazing, I feel a boost in HP in the higher rpm, and I'm noticing an increase in fuel economy. So far the best purchase I've made for my car.
TPosted by (Poland, ME) /
2012 Scion tC
Was this review helpful for you? Yes
4.5 of 5
Awesome Upgrade!
Car sounds great compared to the car's original parts. It gives out a real nice, cool round sound now. Really easy to install. Took me only around 40-60 minutes to set up. Not a major difference in performance but it looks great and it sounds incredible. Definitely an attention-getter. Would highly recommend buying it if looking for a great intake.
CPosted by (San Marcos, CA) /
2003 Hyundai Sonata
Was this review helpful for you? Yes
4.5 of 5
Very Happy
Makes the car go from a timid sounding family vehicle to a sporty growling beast. Not a huge jump in power, but a noticeable response in throttle and sound.
MPosted by (Fulton, NY) /
2007 Ford Edge
Was this review helpful for you? Yes
5 of 5
Very Easy Upgrade
Easy to install. All the existing secondary hoses and sensor housings fit into system. Power has increased dramatically. Still waiting on increased gas mileage, but that may be due to the car's electronic sensing of O2 being lean. Still troubleshooting that. Otherwise, no ill effects to car. Very glad I upgraded.
TPosted by (Austin, TX) /
2004 Toyota Highlander
Was this review helpful for you? Yes
5 of 5
Weapon-R® Air Intake System
Very easy to install in just few minutes, only thing that gave any trouble was the airflow senser which I just needed to shave a bit on the intake and put in. Complete install took less than 15 minutes, car has a very nice growl at full throttle and when driving normal I have picked up about 3 miles per gallon with regular gas.
DPosted by (North Tazewell, VA) /
2010 Ford Fusion
Was this review helpful for you? Yes
4.3 of 5
Air Intake Acura TL 07
Awesome sound at full throttle and little more power.
APosted by (Ankeny, IA) /
2007 Acura TL
Was this review helpful for you? Yes
4 of 5
JPosted by (Baltimore, MD) /
2009 Nissan Sentra
Was this review helpful for you? Yes
3.8 of 5
Easy Installation
The product itself was very easy to install and after I let the car warm up I could just hear the instant change. However the directions that came with the product were very dark and blurry. Almost as if they were supposed to be color. That could've been a case just for me but nonetheless it made things confusing. The directions also didn't explain the extra slinky hose thing that came with the intake. It somehow was supposed to connect from the metal pipe to the filter, but my high school diploma brain couldn't figure it out and the directions didn't mention it at all. If this really is meant for Darts then there should be a set of directions on how to properly take out the stock filter and all the strange tubes that connected to it, which are necessary to remove. All in all me and a buddy had a good (painful) time putting this in and the performance upgrade is instant. Just make sure to set aside more than an hour or two for this installation.
APosted by (Newark, OH) /
2013 Dodge Dart
Was this review helpful for you? Yes
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