Long Tube Headers for NISSAN 350Z/370Z INFINITI G35/G37

Maximum Exhaust Flow. Enhanced V6 Performance. Unleash the Sound of Your VQ Engine.

Unlock the performance potential of your Nissan or Infiniti with the SimuFlow Long Tube Headers, engineered for compatible Nissan 350Z, 370Z, Infiniti G35, and G37 models equipped with Nissan’s legendary VQ-series V6 engines.

Designed to improve exhaust gas evacuation and reduce restrictions within the factory exhaust system, these performance-oriented long tube headers provide an optimized exhaust pathway, helping improve engine breathing, support horsepower and torque gains, and deliver a more aggressive exhaust note.

Whether you’re building a high-performance naturally aspirated VQ setup, upgrading your Nissan or Infiniti with supporting modifications, or preparing your vehicle for dedicated track use, the SimuFlow Long Tube Headers are designed to support increased exhaust flow and demanding performance applications.

Key Features

• High-Flow Long Tube Design: Engineered to improve exhaust gas evacuation and reduce restrictions compared with factory exhaust manifolds.
• Performance-Oriented Exhaust Routing: Extended primary tubes are designed to support efficient exhaust pulse movement and improved engine breathing.
• Horsepower & Torque Potential: Improved exhaust flow can support increased horsepower and torque when paired with appropriate supporting modifications.
• Enhanced Throttle Response: Reduced exhaust restriction can contribute to more responsive engine performance.
• Aggressive VQ Exhaust Sound: Produces a louder, more pronounced exhaust note that highlights the distinctive character of Nissan’s VQ-series V6 engines.
• Performance Tuning Potential: Designed to complement performance ECU calibrations, upgraded intake systems, and additional engine modifications.
• Nissan & Infiniti Compatibility: Intended for compatible Nissan 350Z, 370Z, Infiniti G35, and G37 applications.

Performance Benefits

Maximum Exhaust Flow

The long tube header design provides an improved exhaust pathway compared with restrictive factory exhaust manifolds, helping exhaust gases exit the engine more efficiently. This supports improved engine breathing and performance under demanding driving conditions.

Enhanced Horsepower & Torque Potential

By improving exhaust scavenging and reducing exhaust restrictions, long tube headers can support horsepower and torque gains, particularly when combined with performance ECU tuning and supporting modifications.

Aggressive VQ Exhaust Note

Experience a louder, deeper, and more pronounced exhaust tone that enhances the distinctive character of Nissan’s naturally aspirated VQ-series V6 engines. The long tube configuration delivers a more engaging exhaust experience during acceleration and high-RPM driving.

Vehicle Compatibility

• Nissan 350Z: Z33 — 2003–2009
• Nissan 370Z: Z34 — 2009–2020
• Infiniti G35: V35 / V36 — 2003–2008
• Infiniti G37: V36 — 2008–2013
• Engines: 3.5L VQ35DE / VQ35HR and 3.7L VQ37VHR V6
• Configuration: Performance Long Tube Headers

Note: Fitment varies by chassis, production year, engine configuration, and factory exhaust equipment. VQ35DE, VQ35HR, and VQ37VHR engines have different exhaust configurations, and a single header design may not fit all applications. Confirm exact engine compatibility before purchasing.

Important Information

• Professional installation is strongly recommended.
• Long tube headers may require modifications to existing exhaust connections or additional installation hardware.
• Installation may trigger a check engine light depending on the vehicle’s exhaust and emissions configuration.
• ECU calibration may be recommended to optimize performance.
• Exhaust sound and performance characteristics may vary depending on existing modifications.
• If installation removes or relocates factory catalytic converters, the product is not legal for installation or use on pollution-controlled vehicles on public roads in the United States.
• Verify exact vehicle compatibility before purchasing.

Shipping & Delivery

Estimated Delivery Time: 15 Days

Your SimuFlow Long Tube Headers are carefully prepared and shipped to ensure they arrive safely and in excellent condition.

Please allow approximately 15 days for delivery from the date your order is placed. Delivery times may vary slightly depending on your location and shipping conditions.