2009-2020 Nissan 370Z Stillen 402851DF Air Intake System

Product Features

• Twin Mandrel Bent Polished Aluminum Intake Tubes
• Does Not Use Oil and Provide Low Restriction
• Increased Throttle Performance and Horsepower
• High Quality Washable Dry Filter
• Easy to Clean and No Need to Re-Oil
• CARB EXEMPT EO# D436-22

BENEFITS:

• 13WHP / 9WTQ Peak Gain, Consistent Improvement Across The Rev Band*
• Built To Last - Designed & Manufactured in U.S.A.
• More Efficient Air Filter Media & Enhanced Airflow Improves mileage per gallon (MPG).
• Improved throttle response
• Easy To Install - Simple Enough To Do In Your Driveway
• Visually Improves Your Engine Bay
• Runs Great On Stock Tune - No CEL, No Tune Needed!

*Results May Vary!

Increase engine performance with theSTILLEN air intake for Nissan 370Z Z34. The GEN 2 features the most optimal horsepower and torque gains. ThisSTILLEN Nissan 370Z air intakehas a polished finish. ThisZ34 370Z intakeprovides a better air flow to the engine with the smooth surface tubing construction.

For those With a Dual Throttle Body 370Z owners who want improved performance with a show quality shine, we've introduced our Gen 2 Long Tube Intakes. We replaced the restrictive factory air boxes with two (2) dry filters. These filters are designed with an integral velocity stack and attach to our newly designed polished aluminum long tubes. Replacing the factory intake tubes with the STILLEN design adds additional horsepower, and a great look for the engine bay.

The filters sit inside custom-fitted urethane intake boxes, which ensure no hot engine compartment air gets sucked into the intake tract. This creates a cold air path, and unlike other manufacturers who only partially shield the filter from hot underhood air, STILLEN has fully enclosed the filters and draws on cold air from behind the grille, for optimum performance.

As with all of our urethane intake boxes, these can be left natural black or painted to match the color scheme of the car.

The STILLEN Generation 2 Long Tube Dual Hi-Flow Intake for 370Z is mild under cruising situations, and really comes to life creating an impressive intake note under acceleration.

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: 2009-2020 Nissan 370Z