Weapon R Secret Weapon Air Intake for 2021 Nissan Maxima

CARB Compliance / Exemption Warning: If you live in California and your application for this product is not CARB Compliant / Exempt, then you cannot purchase it for public highway or street use (in that case it could only be used for formally sanctioned race use on a racing vehicle that may never be used on a public highway or street). If your application is not CARB Compliant / Exempt and you're shipping to California, our system will let you know on the final checkout page.

This manufacturer has a policy which prevents shipment to California for applications of this product that are not CARB Compliant / Exempt. Therefore, if you live in California, you will not be able to receive your part if it does not have a CARB EO #, even if it is for a dedicated race vehicle.

NEW: By default all Weapon R Secret Weapon intakes now come with a Stealth Black color air filter instead of the normal gunmetal one! Please note that you may still receive a gunmetal one while our inventory is switched over.

This Weapon R Secret Weapon intake is made to significantly increase the volume of air going into your motor. It is unlike any other intake on the market. The concept is to create two different air velocity profiles, one traveling at a higher speed than the other. This technology increases air volume and air speed, which naturally feeds your engine 3x more air than conventional air intake systems. The intake pipe is bent out of high quality 6061 T6 aluminum on Weapon R's automated CNC mandrel bender and then polished to a high show quality finish.

The Secret Weapon air filter (included) features a tuned velocity stack to increase air speed and decrease air turbulence. The filter material is made from open pore high-density foam, and does a great job of blocking dust/dirt particles without sacrificing performance.

Key Features:

• 6-14+ horsepower gain, depending on modifications.
• Easy to install and maintain.
• Features a high-flow Secret Weapon performance air filter, made from special high-density foam that is oil-free. NEW: filter now comes in Stealth Black!
• Comes with installation hardware and instructions.
• Award winning Dual Tube Velocity design.
• Mandrel bent 6061 T6 aluminum intake tubing with polished finish.