RHR Cool Air Box

Usually Ships on or before Tue, Mar 31

Product Information:

List Price: $129.99Sale Price: $95.00

(11 customer reviews)
SKU: CAB-001
Usually Ships on or before Tue, Mar 31

39 in stock

— OR —

Product Description

  • Cleaner & Cooler Air = More Horsepower
  • Channels cleaner & cooler air into your carb
  • Laser & machined lightweight aluminum
  • Works with hood scoop or enclosed hoods without scoop
  • Keeps out hot air from engine and fan
  • Works with plastic or aluminum air filter bases
  • Air cleaner base not included
  • Included bulb seal creates a tight seal against the underside of the hood
  • Great for mods, late models and stock cars
  • Ave Gains: +4-5HP / +2-3 Torque (Seen Dyno Sheets Below)
  • Dimensions 19″ W x 19″ L X 5″ Tall.  (Trim to fit height)

Note: Works best with a 1″ spacer on the bottom of your air cleaner base.

Improve your engines performance with the RHR Cool Air Box. Cleaner & Cooler Air = More Horsepower. The cold air box for dirt late models, modifieds & street stock race cars features laser cut and machined lightweight aluminum and bulb seal that will help keep your race cars engine cool.  It’s designed to channel cleaner & cooler air into your air filter faster. Utilizing your air cleaner base, the cool air box is trim to fit and will keep a nice tight seal against the underside of your race car hood and is super light weight. The application works for both hood scoop and sealed type hoods and can be used as a three or four walled design. The kit includes 1 base sheet of 14 gauge (.064) aluminum, 2 curved side sheets of 18 gauge (.040) aluminum, 2 straight sides of 18 gauge (.040) aluminum, 6 ft of 5/8″ bulb seal and 24 rivets. If your race car has a completely sealed hood then you would not use one of the straight side pieces.
Cold Air Box Features 2 Set Up Options
Enclosed Hood without hood scoop:  Use cold air box with just 3 sides leaving the base open to channel air.

Traditional hood with opening & hood scoop:  Use all 4 sides of cold air box and trim to fit for a nice seal against the under side of your hood.

RHR Cool Air Box – Product Features


Dyno Results: +4-5HP & +2-3 Torque

-Black line is with Cool Air Box, Red Line is without box (standard).  Test was on a 350 Chevy B-Mod style motor.

Dyno Results: Cool Air Box with 4 Sides & Hood w/ Hole In It (Black Line) vs. Standard Air Filter & Base (Red Line)
Dyno Results: Cool Air Box with 4 Sides & Hood w/ Hole In It (Black Line) vs. Standard Air Filter & Base (Red Line)
Dyno Results: Cool Air Box with 4 Sides & Enclosed Hood (Black Line) vs. Standard Air Filter & Base (Red Line)
Dyno Results: Cool Air Box with 4 Sides & Enclosed Hood (Black Line) vs. Standard Air Filter & Base (Red Line)


RHR Cool Air Box – Product Features

RHR Cool Air Box Insallation Video


RHR Swag® Warranty Disclaimer: Vehicle racing is inherently a dangerous sport with significant risk of person injury or even death. When a user participates in vehicle racing, he/she accepts the risk inherent therein. RHR Swag® & Red Headed Rebel® makes no warranty that the use of its products or parts guarantees personal safety. The installation of RHR Swag® products or parts may adversely affect other vehicle components, safety equipment or manufactured goods (collectively “goods”). RHR Swag® assumes no responsibility for any damage to other goods, or bodily injury that may arise due to failure of other goods, due to installation and/or use, either proper or improper, of its products or parts.

RHR Swag® Warranty: Product we manufacture are backed by a 1 year limited warranty for repair or replacement except for LED lights, which come with a 90-day warranty.


11 reviews for RHR Cool Air Box

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  1. RHRSwag.com

    added dyno sheets and images

  2. RHRSwag.com

    changed bullet and est tab to say 2-3 weeks for shipping

  3. Jay Anderson (verified owner)

    Very well made! Fast Free Shipping!! Thanks!

  4. Shane Sabraski (verified owner)

  5. Patrick W. (verified owner)

    Great price, very fast shipping

  6. Jeff Watkins (verified owner)

    Very good product, great quality. Very happy with RHR, will definitely use more of there products in the future.

  7. Chad S. (verified owner)

    I think the product is GREAT, But it will only work with crate or concept motors using a 4 barrel carb, should be noted that it doesn’t fit with 2 barrel carb set up unless some major changes are made.

  8. Ritch Lapointe (verified owner)

    Easy to put together and install. Another amazing product, my favorite company to deal with. Cannot reccomend them enough.

  9. Bradley Vigen (verified owner)

  10. Ernie D

    Arrived quickly. Was pretty easy to assemble and install. The instructions could have been better. Happy with the performance.

  11. Francis Davis

    Great product. This is our 2nd one. Saves us on air filters and kid says the car is a little faster.

Weight / Dimensions

Weight 6 lbs
Dimensions 22 × 22 × 8 in