Technical Information
High-Performance Cold Air Intake Systems
Built by Engineers. Designed for Enthusiasts.
Why Choose Our Performance Systems?
We’re not just part of the performance aftermarket — we helped build it. Our engineers have developed components for GM, Ford, and Stellantis, supplying high-performance systems directly to OEMs.
Now, we bring that same expertise to the aftermarket. That means you get OEM-level quality with the performance edge enthusiasts demand.
Easy, Hassle-Free Installation
OEMs require fast, foolproof installs — and we hold ourselves to the same standard.
Our systems feature ergonomic designs, pre-assembled components, and precision clearances. Whether you’re a first-timer or a seasoned wrench, expect a smooth install in under 30 minutes.
The toughest part? Removing the factory parts.
Colder Air = More Power
Cooler air is denser, delivering more oxygen into your engine — and that means more horsepower.
For every 10°F drop in intake temperature, you can gain about 1% in power.
Example:
A 400 HP engine at 77°F can gain around 4 HP by lowering intake temps just 10°F.
SAE Correction (J1349):
CA = √(Tref / T)
Tref = 298K (77°F), T = Actual intake temp in Kelvin
More Airflow, More Performance
We tested our system using SAE J1349 airflow standards. The result? A 45.87% improvement over OEM airflow
Performance Rule of Thumb:
1.07 HP gained for every 1 in H₂O reduction in intake restriction.
And unlike some competitors, we don’t sacrifice filtration or pull in hot engine air just to look good on paper. Our systems are tuned for real-world performance.
Tuned for Peak Power
Our short-runner design improves high-RPM power by reducing pressure wave interference.
A large 9-liter plenum acts as a clean-air reservoir — tuned specifically for GM’s 5.3L and 6.2L engines. It delivers consistent airflow exactly when you need it most.
Proven Filtration, No Compromises
We test to tough OEM standards using ISO 5011 fine dust (not coarse dust like many others).
Walker Performance Filters trap more than 99% of harmful particles, protecting your engine without choking performance.
Real Cold Air, Not Hot Engine Bay Heat
We source cool, dense air from a high-pressure zone at the front of the vehicle — not the engine bay.
- Heat-resistant thermoplastics reduce soak
- Short-runner design recovers fast
- Maintains low intake temps under throttle
At full throttle, heat transfer is minimal. Our design balances materials and size to keep intake temps close to ambient.
The Sound You Want
Factory intakes are built to be quiet. Ours are built to perform — and sound like it.
Expect a deep, throaty growl when you step on it, without sucking in hot engine air.
All performance, no compromise.
Bonus: Fuel Economy Gains
Drive conservatively and you may see a small bump in MPG. Cooler air improves combustion efficiency, but your driving style makes the biggest difference.
OEMs track this using:
Rise Over Ambient = Intake Air Temp – Outside Air Temp
Lower numbers = better combustion efficiency.
Learn More
Visit our OEM supplier and learn about the team behind the tech:
👉 www.naassembly.com