STILLEN 2009-2020 Nissan 370Z Dual Long Tube Air Intake (Gen 2) [Z34] - Dry Filter - 402851DF

Enhance performance and throttle response on your Nissan 370Z with the STILLEN Gen 2 Dual Long Tube Air Intake Kit 402851DF. Engineered and manufactured in the USA, this intake system replaces the restrictive factory air boxes with high-flow dry filters and polished long tube intake piping to deliver consistent horsepower and torque gains across the entire rev range.

Vehicle Fitment

• 2009–2017 Nissan 370Z [Z34]
• Dual throttle body VQ37VHR engines
• Runs on factory tune with no check engine light
• Does NOT fit 2018–2020 models
• Not legal for sale or use in California

Performance Benefits

• Dyno-proven peak gains of +13 WHP and +9 WTQ (Results may vary)
• Consistent horsepower and torque improvement throughout the rev band
• Improved throttle response and engine efficiency
• Enhanced airflow and filter efficiency may improve fuel mileage
• Aggressive intake sound under acceleration while remaining mild during cruising

Construction & Features

• Twin mandrel-bent polished aluminum intake tubes for smooth, unrestricted airflow
• High-quality STILLEN washable dry air filters
• Dry filters require no oiling and are easy to clean and reuse
• Custom polyurethane heat shields fully enclose filters to block engine heat
• Cold air is drawn from behind the grille for consistent intake temperatures
• Heat shields can be left natural black or painted to match the engine bay
• Designed and manufactured in the USA for long-term durability

Installation

• Straightforward bolt-on installation
• Can be installed in your driveway with basic hand tools
• No ECU tuning required
• No sensor relocation or permanent modifications needed

The STILLEN Gen 2 Dual Long Tube Air Intake 402851DF is an ideal upgrade for 2009–2017 Nissan 370Z [Z34] owners seeking proven power gains, improved throttle response, refined engine sound, and show-quality engine bay appearance—all while maintaining factory drivability and reliability.