Gain 44.5-Horsepower* for Your 2018 Dodge Challenger Demon V8

There’s nothing quite like the sound of a growling, well-fed engine. Help protect the engine of your Dodge Demon and gain a guaranteed increase in horsepower and torque with the K&N® 63-1577 air intake system, engineered specifically for 2018 Dodge Challenger Demon 6.2L V8 models. The K&N® 63-1577 high-density polyethylene (HDPE) intake system boasts an estimated power increase of 44.5-horsepower and 52.3 lb./ft. of torque*, and is protected by K&N’s 10-Year/Million Mile Limited Warranty.

“Easy install, smoothed out the whole system. Instructions were clear and relatively simple. I had previously installed a new cat-back pipe and wasn't completely sold on the sound...the K&N intake helped the engine breathe and actually gave me a rich, deep, smooth tone from the pipes. Noticeable increase in response as well.” – Preston from Delaware [Part No. 63-9039]

The 63-1577 is designed to help keep engine air cooler, which can increase engine combustion efficiency, and helps provide a smooth, low-restriction path for airflow to the engine. Your engine needs oxygen to create power; the cylinders in your vehicle’s engine need to have air to create the explosion that produces horsepower and torque. Since cold air contains more oxygen molecules than warm air, injecting a higher volume of oxygen-rich air into the cylinders allows the engine to burn fuel more efficiently during combustion—providing an increase in power.

In a typical stock air intake system, air has to pass through a thick, disposable paper filter, and then move through a narrow system of tubing that can cause air to swirl and become turbulent. Excess turbulence causes the molecules within the air to collide, creating heat, which lowers the density of the air and reduces the efficiency of combustion. All K&N intake systems are specifically engineered to help keep your engine air cooler.

“I absolutely love this product. Did not take too long to install and the performance was noticeable. Highly recommended and I will tell all my friends about it.” – Richard from California [Part No. 71-3070]

Since engine combustion is most efficient in an oxygen-rich environment, keeping engine air cooler often significantly increases engine combustion efficiency. The 63-1577 intake system features a free-flowing, high-density polyethylene intake tube, which is engineered to reduce turbulence in the air, and helps keep engine air cooler for increased engine performance! The 63-1577 also incorporates a steel heat shield, which helps protect the air filter and intake air from high temperatures within the engine bay.

“Very noticeable difference in performance.” – Matt from Washington [Part No. 63-1568]

Under normal circumstances, most automotive air filters demonstrate an inverse relationship between airflow and efficiency—the higher the airflow, the less efficient the air filter is at protecting the engine, and vice versa. The oiled design of K&N air filters assists in “absorbing” dirt particles—and in turn helps incorporate those particles into the filter surface itself, which helps maintain the filter’s efficiency and ability to flow air. When tiny particles are captured and saturated with oil, they in turn can become tacky, allowing them to capture other particles.

The High-Flow Air Filter™ included in the 63-1577 intake kit is oversized with a conical shape, providing a greater surface area and allowing for a service interval of up to 100,000 miles between cleanings (under normal highway driving conditions). High-Flow Air Filters feature an oiled, layered design. When your filter does need to be cleaned, you can use the K&N Recharger® Kit (99-5000 or 99-5050) to quickly and easily restore your filter’s performance. Each K&N intake (and filter!) is designed to last for the life of your vehicle.

“As always, top notch quality and excellent fit/finish. Thank you.” – Jacob from California [Part No. 57-3039]

The K&N 63-1577 intake system is engineered to incorporate factory mounting points and the factory mass air sensor. Installation can typically be completed in 90 minutes or less, and requires only simple hand tools. Detailed instructions are included in your kit, and an installation video (included above) will walk you through the installation process.

Engineered to fit:

• 2018 Dodge Challenger Demon 6.2L V8 Fuel Injection All Models

Each intake system comes with a 10-Year/Million Mile Limited Warranty. Furthermore, using a K&N replacement air intake system will not void your factory warranty; in the U.S., manufacturers must provide evidence that an aftermarket part is the cause of a necessary repair in order to void or deny warranty coverage. The Consumer Products Warranty Act of 1975 (also known as the Magnuson-Moss Warranty Act) protects consumers’ rights to their warranty coverage.

“I put this on and immediately saw an improvement in horsepower and fuel economy. Highly recommended it.” – Kirk from Canada [Part No. 57-2561]

K&N performance air intake systems come with a horsepower guarantee—you will get an increase in horsepower and torque! During dynamometer testing, the 63-1577 provided an estimated power increase of 44.5-horsepower and 52.3 lb./ft. of torque*. Follow this link to view the complete dynamometer chart.

“Straight forward install. Removes factory bulk and the added torque is noticeable.” – Christopher from Texas [Part No. 63-2588]

Visit this page to purchase the 63-1577 air intake system, or visit the vehicle search page to explore air intake system options for your vehicle. Join the millions of customers who trust K&N to help them boost performance and protection in their vehicles!

Legal in 49 states. Not legal for sale or use in California on any pollution controlled motor vehicle.

*Horsepower gains vary among products and applications, but each K&N performance air intake system is designed to increase airflow efficiency for specific vehicles and their engines. Each kit undergoes significant testing to help ensure that the filter and intake tube are engineered to deliver large increases in airflow and horsepower. Please visit individual product pages to view horsepower estimates for your specific vehicle.