STILLEN 2009-2020 Nissan 370Z Dual Hi Flow Ultra Long Tube Air Intake (Gen 3) [Z34] - Dry Filter - 402852DF

The STILLEN Gen 3 Dual Hi-Flow Ultra Long Tube Air Intake 402852DF is the most powerful naturally aspirated intake system available for the Nissan 370Z. Designed, engineered, tested, and manufactured in-house at STILLEN headquarters, this intake delivers unmatched dyno-proven gains while maintaining stock drivability and reliability.

This system represents the culmination of extensive research and development, with over 50 intake configurations tested to extract maximum performance from the VQ37HR engine—without requiring ECU tuning.

Vehicle Fitment

• 2009–2020 Nissan 370Z [Z34] Coupe
• Fits standard 370Z models
• Fits 370Z Nismo models with minor modification
• Runs on factory ECU tune with no check engine light
• Not legal for sale or use in California

Performance Benefits

• Dyno-proven gains of +17.5 RWHP and +13 WTQ at the wheels (Results may vary)
• Significant improvement in acceleration and throttle response across the entire rev range
• True cold air induction by relocating intake inlets ahead of the radiator
• Increased airflow efficiency may improve fuel economy
• Aggressive intake sound under throttle with smooth cruising behavior

Construction & Features

• Ultra-long mandrel-bent polished aluminum intake tubes
• Variable-diameter tubing engineered to maximize air velocity
• Dual large STILLEN high-quality washable dry air filters
• Dry filters require no oiling and are easy to clean and reuse
• Intake filters positioned for maximum exposure to cold ambient air
• Designed, manufactured, and quality-inspected multiple times at STILLEN HQ in the USA
• Show-quality engine bay appearance

Installation

• Bolt-on installation using basic hand tools
• Front bumper removal is recommended to simplify installation
• Minor core support hole enlargement required
• No sensor relocation or tuning required
• Nismo model installation requires slight modification
• Detailed installation instructions included

The STILLEN Gen 3 Ultra Long Tube Air Intake 402852DF sets the benchmark for naturally aspirated performance on the 2009–2020 Nissan 370Z [Z34], delivering power gains previously thought impossible from an intake alone—all while retaining stock ECU compatibility and daily-drivable manners.