2019-2023 Chevrolet Silverado 1500 Stillen TP403501 Air Intake System

• Made in USA
• Limited lifetime warranty
• Direct cold air flow
• Reduced intake air temperatures
• Compatible with any air intake or supercharger that uses factory air intake scoop
• Textured finish for OEM fit and finish
• Very easy installation
• Not compatible with GMC Sierra

The factory Air intake system on the Chevrolet Silverado 1500 is a very unique and creative design. During testing our engineers placed multiple temperature probes throughout the engine bay and access panels of the Silverado engine bay in order to find the coldest possible air source. Turns out, Chevrolet engineers did a pretty good job of finding a great source of fresh air. Knowing that repositioning the air intake would not be beneficial our team of designers began looking at ways to improve the airflow and find additional benefits.

Pretty quickly our team noticed that the path of the airflow was good, but quite disruptive. The air had to travel through the grille, up the radiator, through the lattice work of the shroud then around the radiator shroud and finally into the intake scoop.

This presented two problems.

1) There is no natural path for the air to flow through.

Every one of these turbulent areas, every interference causes restriction and/or causes work for the air. The goal is to get the air into and through the air intake system as cleanly and efficiently as possible.

2) The air is susceptible to being heated by the radiator.

The air must travel up the face of the radiator in order to make its way into the air intake opening. Keep in mind, the radiators operational temperature is 180-220 degrees. Significantly higher than ambient.

To solve the two problems with this otherwise fantastic design the design team at STILLEN began by creating a proper scoop. This scoop lowers the base of the radiator shroud to be in line with the top bar of the famous Chevrolet grille. This new design allows for the air to come directly into the intake system without being warmed by the radiator, or disrupted by the lattice type material in the radiator shroud. This design eliminates the pre-heating and the turbulence caused by the factory system.

During our development our team noticed that the factory

¾ and 1 ton trucks actually have scoops in their radiator shroud designs also which confirmed that the True Power by STILLEN cold air intake scoop for the Chevy Silverado was on the right track!

An additional benefit to this air intake is that it will work with any aftermarket air intake system that utilizes the factory air intake scoop.

*NOTE: As of February 15, 2022 this product is compatible with the active aero shutters.

Since 1986 STILLEN has been recognized as a leader in the high performance automotive industry.  Founded by multi-time World Champion racing driver Steve Millen our company has always been focused on achieving the best performance possible while manufacturing all of our products in America.  STILLEN is comprised of a team of enthusiasts with decades of experience tuning, enhancing, and overall improving road cars to be superior in every way.  With in-house manufacturing capabilities for poly-urethane injection manufacturing, metal fabrication and a full CNC machine shop STILLEN is able to produce all products in house to our very strict quality control standards.

Being a manufacturing and engineering company we are able to see the quality of the products made by our partner vendors. We select every partner vendor based on many factors but none more important than the quality of their products and Customer Service. These two factors are the most important for STILLEN when it comes to offering our vendor partners products to our valued customers. Because we manufacture such a wide range of products we have the experience required to know what is happening with another manufacturer’s products and to know whether or not it is a product we can believe in.

With all of the manufacturers we offer STILLEN works extremely hard to develop and maintain excellent relationships with these manufacturers to ensure our customers have the best experience possible. Whether you are purchasing a STILLEN manufactured product or a part offered by one of our dozens of vendor partners we can guarantee that STILLEN is able to provide the best service possible from fast shipping, to any product support that might arise.

Steve Millen has won championships around the world in many different disciplines of auto racing. From rally cars, to single seaters, and offroad trucks to the highest level of sports car racing (IMSA) Steve has won championships in every category and still holds records for most wins and most pole positions. He is also the only driver in history to win the 24 hours of Daytona, 12 hours of Sebring and 24 hours of Le Mans in the same year. This level of skill and racing prowess drives our entire team every day to be the best in the business.

Fitment: 2019-2023 Chevrolet Silverado 1500