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This stainless steel exhaust header set is designed for page-listed Nissan and Infiniti VQ applications, including 2007–2008 Nissan 350Z 3.5L HR engines, 2009–2013 Nissan 370Z 3.7L models, and 2008–2013 Infiniti G37 2-door / 4-door 3.7L models.
Built from T304 stainless steel with CNC-machined flanges, TIG/MIG welded construction, mandrel-bent tubing, 2.0" inlet, 2.5" outlet, and primary runner dimensions as listed, this header set is designed to support a secure exhaust path where compatible. Final fitment, sound, exhaust sealing, drivability, and performance results may vary depending on vehicle condition, engine code, exhaust layout, O2 sensor setup, installation quality, emissions setup, and supporting components.
This product is an exhaust header set for compatible Nissan 350Z / 370Z and Infiniti G37 VQ applications. It is not a catback exhaust system, downpipe, test pipe, turbo manifold, full exhaust system, or universal header kit. Please verify your exact model year, chassis, engine code, flange layout, O2 sensor position, downstream exhaust connection, and emissions requirements before purchase.
Please use the table below to quickly confirm the main vehicle applications currently listed for this header set. Before ordering, verify your exact model year, chassis, engine code, O2 sensor layout, flange connection, downstream exhaust layout, and emissions setup.
| Vehicle Name | Year | Engine | Notes |
|---|---|---|---|
| Nissan 350Z | 2007–2008 | 3.5L V6 HR | Verify VQ35HR engine, flange layout, O2 sensor position, and exhaust connection before purchase |
| Nissan 370Z | 2009–2013 | 3.7L V6 | Page-listed all models; verify exact chassis, engine setup, and exhaust configuration |
| Infiniti G37 2Dr / 4Dr | 2008–2013 | 3.7L V6 | Verify coupe / sedan configuration, flange layout, O2 sensor position, and exhaust connection |
Please review the product photos and listing details before installation. Confirm all included headers, flanges, gaskets, fasteners, and connection requirements against the received package before beginning installation.
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The exhaust header is the first section of the exhaust system and mounts directly to the engine. Its role is to collect exhaust gases from each cylinder and route them into the rest of the exhaust system.
Compared to many factory manifolds, header designs often focus on smoother internal flow and more uniform exhaust routing before gases move downstream.
Designed to meet packaging, cost, and emissions requirements
Prioritizes durability and compliance across broad use cases
Designed with exhaust flow characteristics in mind
Built for higher exhaust temperatures and specific vehicle platforms
Commonly used as part of an exhaust system configuration
Products on this site are intended for off-road, racing, or closed-course use where emissions laws apply. They are not represented as street legal, emissions-compliant, or legal for use on public roads unless explicitly stated.
Some products may remove, replace, relocate, disable, or alter emissions-related components, including but not limited to catalytic converters, EGR, DPF, SCR, DOC, O2 sensors, or related factory systems. Compatible tuning, calibration, or supporting modifications may be required to avoid engine codes or drivability issues.
Professional installation is recommended. Buyers are responsible for verifying product compatibility, local regulations, emissions requirements, and any required tuning or supporting modifications before purchase and installation.
Performance gains, sound changes, airflow improvements, temperature changes, fuel economy changes, fitment, and drivability results may vary. No specific performance gains are guaranteed.
