My Pro Street

Check out our MGP Caliper Cover Site! Cart  
 You are here:   Home / Intake / Weapon R Intakes

Weapon R Secret Weapon Intakes
Buy Weapon R Secret Weapon Intakes here
Click to enlarge

Weapon R's Secret Weapon Intake series has outperformed the competition on our own Dynojet 448X as well as many other tests, including the 2003 Tuner Performance Reports. Delivering a colder, denser charge of air to your engine helps generate more power than the competition, and increases overall engine performance and efficiency.

The Secret Weapon Intake features a velocity stack pipe that is placed inside the inner diameter of the charge pipe to allow for a shielded, charged influx of air. The concept is to create two different air velocity profiles, one traveling at higher speeds than the other.

This technology increases air volume and speed to the engine, which naturally feeds the engine 3x more air than the conventional air intake system. The intake pipe is bent out of high quality 6061 Aluminum on our Automated CNC mandrel bender. Polished to a high show quality finish.

The SW1 Air filter features a tuned velocity stack to increase velocity and decrease turbulence. Only Comes In Polished. 1 Million Mile Limited Warranty Open pore high density re-usable foam Over 250 applications for Car's / Trucks / SUV's

Free Ground Shipping on Weapon R Secret Weapon Intakes!

Weapon R Intakes from Pro Street provide direct fit installation, reusing all your stock sensors. This is a complete bolt on kit, requiring no modification, and providing added horsepower!

Installs in minutes with minimal hand tools!

Read our writeup on the Secret Weapon intake on a 350Z.

Weapon R Secret Weapon Intake Weapon R Secret Weapon Intake Weapon R Secret Weapon Intake Weapon R Secret Weapon Intake Weapon R Secret Weapon Intake

   Applications for Weapon R Secret Weapon Intakes

Acura CL Acura Integra Acura Legend
Acura MDX Acura NSX Acura RSX
Acura TL Acura TSX Acura Vigor
BMW 3 Series BMW 318i BMW 528
BMW M3 BMW M6 Buick Century
Buick LeSabre Buick Regal Buick Riviera
Cadillac Escalade Cadillac EXT Chevrolet Avalance
Chevrolet Aveo Chevrolet Beretta Chevrolet Blazer
Chevrolet C/K Pick Up Chevrolet Cavalier Chevrolet Cobalt
Chevrolet Colorado Chevrolet Equinox Chevrolet Impala
Chevrolet Lumina Chevrolet Malibu Chevrolet Monte Carlo
Chevrolet S-10 Chevrolet S-15 Chevrolet Silverado
Chevrolet Suburban Chevrolet Sunfire Chevrolet Tahoe
Chevrolet Trail Blazer Chevrolet Yukon Chrysler 300M
Chrysler PT Cruiser Chrysler Sebring Daewoo Laganza
Daewoo Lanos Daewoo Nubria Dodge Avenger
Dodge Colt Dodge Dakota Dodge Durango
Dodge Intrepid Dodge Neon Dodge Neon SRT-4
Dodge Ram Dodge Stealth Dodge Stratus
Eagle Summit Eagle Talon Ford Contour
Ford Escape Ford Escort Ford Excursion
Ford Expedition Ford Explorer Ford F-150
Ford F-250 Ford F-350 Ford Focus
Ford Probe Ford Ranger Ford ZX2
Geo Prizm Geo Storm Geo Tracker
GMC Envoy GMC Jimmy GMC Sierra
GMC Sonoma GMC Tahoe GMC Yukon
Honda Accord Honda Civic Honda CR-V
Honda Del Sol Honda Element Honda Fit
Honda Jazz Honda Odyssey Honda Passport
Honda Pilot Honda Prelude Honda S2000
Hummer H2 Hyundai Elantra Hyundai Santa Fe
Hyundai Sonata Hyundai Tiburon Infiniti FX35
Infiniti G20 Infiniti G35 Infiniti I30
Infiniti J30 Infiniti M30 Infiniti M45
Infiniti Q45 Isuzu i-Mark Isuzu Impulse
Isuzu Rodeo Isuzu Vehicross Jeep Grand Cherokee
Jeep Liberty Jeep Rubicon Jeep Wrangler
Kia Sorento Lexus ES250 Lexus ES300
Lexus GS300 Lexus GS400 Lexus GS430
Lexus IS300 Lexus LS430 Lexus RX300
Lexus RX330 Lexus SC430 Lincoln Navigator
Mazda 3 Mazda 323 Mazda 6
Mazda 626 Mazda Miata Mazda MX3
Mazda MX6 Mazda Protege Mazda RX7
Mazda RX8 Mazda Tribute Mercedes V6 models
Mercury Cougar Mercury Mystique Mercury Tracer
Mini Cooper Mitsubishi 3000GT Mitsubishi Diamante
Mitsubishi Eclipse Mitsubishi Evolution Mitsubishi FTO
Mitsubishi Galant Mitsubishi Lancer Mitsubishi Mirage
Mitsubishi Montero Mitsubishi Outlander Mitsubishi Truck
Nissan 200SX Nissan 240SX Nissan 350Z
Nissan Altima Nissan Armada Nissan Frontier
Nissan Maxima Nissan Murano Nissan NX1600
Nissan NX2000 Nissan Pathfinder Nissan Sentra
Nissan Titan Nissan Truck Nissan Xterra
Oldsmobile Achieva Oldsmobile Aurora Oldsmobile Bravada
Oldsmobile Cierra Oldsmobile Cutlass Plymouth Laser
Pontiac Bonneville Pontiac Grand Am Pontiac Grand Prix
Pontiac GTO Pontiac Sunfire Pontiac Vibe
Saturn DOHC Saturn Ion Saturn L200
Saturn SOHC Subaru Baja Subaru Forester
Subaru Impreza Subaru Legacy Subaru Outback
Subaru WRX Toyota 4Runner Toyota Camry
Toyota Celica Toyota Corolla Toyota Echo
Toyota Highlander Toyota Matrix Toyota MR2
Toyota MRS Spyder Toyota Paseo Toyota Rav4
Toyota Sequoia Toyota Solara Toyota Tacoma
Toyota Tercel Toyota Truck Toyota Tundra
Volkswagen Cabriolet Volkswagen Golf Volkswagen Jetta
Volkswagen Passat


The Secret Weapon Intake Systems is an result of countless hours of testing and tuning of air intake velocity, Airmass and Airspeed for each vehicle application. The Result, an intake system that performs better than any Cold Air Intake, but with a Short Ram. It is possible by Weapon*R's Patent Pending Speed Velocity theory, By creating a higher airspeed in the intake path you increase airmass and airspeed, which greatly increase horsepower.

This is possible by Creating two different paths of airflow, both flowing at different airspeeds, due to the tubing diameter in which the air is traveling. Now when the 2 different paths of air meet,they create a vacuum, which is where the airspeed starts to multiply, forcing more air into the engine at a higher rate, creating more horsepower.

The Secret Weapon Intake Systems are carefully CNC mendrel bent out of 6061 Aluminum, and then Hand Tig Welded in sections to ensure a constant balance in airflow, regulation in airspeed, positive seal and proper fittment. Each one of these intake systems are carefully tuned, by matching the engines displacement, air intake capacity and airspeed to the intake systems tube size,length and secondary pathway tubing diameters to maximize the full potential of the SECRET WEAPON INTAKE SYSTEM.

This Intake is Matched with our Newly designed SW1 Filter, which provides maximum airflow, with the protection of high quality dense Poly Urethane Foam. Many studies have shown Flow rates of up to 80% more Air and Better Dirt Filtration with Foam Filter than the conventional cotton filter. The SW1 main feature is an Computer CAD Designed and Flow benched Tested TURBO Velocity Stack, which greatly increases airflow ,airspeed and airmass into the engine, therefore increasing engine performance. Another one of the SW1 Filters great features are the capability to be dis-assembled to be cleaned and then re-assembled after cleanings or to change the color of the foam filtering element.

Weapon R Secret Weapon Intake
Weapon R Secret Weapon Intake

Weapon R Secret Weapon Intake

Weapon R Secret Weapon Intake

We would like to explain how the " SECRET WEAPON " Intake system works.

Here are some pictures of a flow test done with our specially designed flow bench.

Our flow bench is very similar to those used to test flow in machine shops. We measure pressure, in this case vacuum pressure, inside of the pipe. The form of measurement we use is in H2O, or inches of water. This is the same as a majority of industry flow benches. Almost all flow benches use a meter called a Manometer, which has actual water in it, to make its measurements. We opted for a more precise method, using a precision tuned digital vacuum meter, provided to us by The DigiVac Company. The easiest to read this is the higher the number on the display, the better the flow is through the pipe. All test shown were performed using a Craftsman 5hp wet/dry vacuum as a vacuum source.

Picture 1 : Picture of the PATENT PENDING " Secret Weapon Intake Pipe " design. You can see the smaller inner tube used to increase velocity. The airflow through the inner tube has a higher velocity than a standard 3" intake pipe. The higher velocity / volume of airflow from the inner pipe creates a low-pressure vacuum at the throttle body end of the pipe, called a Venturi. This Venturi draws the air from the outer pipe, increasing its velocity, and increasing the overall volume of air entering the engine.

Weapon R Secret Weapon Intake

Picture 2 :In this picture, we first test a standard 3 pipe. Here you can see that the display is reading 1.4 in H20. We cap off the other pipe to provide a more accurate reading.

Weapon R Secret Weapon Intake

Picture 3 : In this picture we are now testing the Secret Weapon design. We see that the reading has increased to 2.3 in H20. This increase is due to the small inner pipe increasing velocity in the intake tract.

Weapon R Secret Weapon Intake

Picture 4 : In this photo, we test a pretty good-sized K&N style gauze filter. You can see that with this filter, the reading has actually DECREASED down to 2.0 inH2O.

Weapon R Secret Weapon Intake

Picture 5 : Swapping a Secret Weapon filter for the gauze filter, shows a large increase over the gauge filter and over just the open pipe as well. The improved velocity stack and filter design encourages the air to flow in a direct route through the pipe while maintaining a high velocity and low restriction.

Weapon R Secret Weapon Intake

What does this all mean?
    The Secret Weapon uses two important laws of physics to increase airflow. The first law is Boyles law. This law basically states that as air velocity increases, its volume increases as well, while the pressure decreases. The second law is the Bernoulli Equation, where a moving fluid (in this case air) has a lower pressure than air that is standing still, or is moving slowly. This same law is used in NASCAR for both downforce and "drafting." When we increase the air velocity in the intake, we create a low pressure area that draws a higher volume of air than a standard intake would. In layman's terms, we are creating a vacuum effect using natural laws of physics.
Do the Weapon*R Air Filters, filter dirt better than K&N / AEM / Injen Air Filters?
    The Secret Weapon Air Filter is made of Polyeurethane Foam, which is rated at 300 Pores per square inch. Whereas the K&N / AEM / INJEN air filters are rated at 30-60 pores per square inch. This means that there is more dirt particles passing through the air filter to the engine when using their filters.
Why is the Secret Weapon Air Filter so much better?
    The reason why the Secret Weapon Air Filter flows much better than any other filter on the market today is because of the specially designed Velocity Stack inside the air filter, it helps gather more air into the air filter and velocitize the air into the intake tube.

Having trouble finding your part? Click here for help!

Reviews of Weapon R Secret Weapon IntakesBecome a member!

No reviews posted for Weapon R Secret Weapon Intakes. Be the first!

Add a new review!

Navigation: Replacement parts in this category:

Home | Terms and Conditions | Order Status | Site Map | OEM Parts Sitemap | Parts Map | Articles | Resources

PSI Performance. Copyright 1998-2014, All rights reserved.
Serving California Since 1998.

Follow Us
WordPress Facebook Twitter Youtube