Flashark Exhaust Headers for 2008-2013 Infiniti G37/G37X/G37XS, 2009-2013 Nissan 370Z & 2007-2008 350Z 3.5L/3.7L
Designed for Nissan 350Z / 370Z and Infiniti G37 models, this Flashark stainless steel exhaust header delivers noticeable performance gains without sacrificing reliability. Built from high-quality stainless steel with a polished finish, it enhances exhaust flow for stronger acceleration and a more aggressive exhaust tone. The direct bolt-on design ensures easy installation, making it an ideal upgrade for drivers looking to unlock more power and driving excitement with confidence.
Fitment:
2007-2008 Nissan 350Z 3.5L V6 HR Engines
2009-2013 Nissan 370Z 3.7L 2 doors/ 4 doors
2008-2013 Infiniti G37 G37X G37XS 3.7L 2 doors/ 4 doors
*Also fits Sedan / Coupe
Specifications:
Brand Name: Flashark
Certificate: ISO9001:2000
Application: Automobile Exhaust Header
Material: Stainless Steel
Surface: Mirror Polish
Model: EH28943X
Inlet: 2.0" / 50.8mm
Outlet: 2.5" / 63.5mm
Features:
Number of O2 Sensor Locations: 2
Design Stype: 3-2-1 Design
1 3/4" width x 1 1/4" height primary runners
Dyno gains of 15 HP and 20 Torque
Direct bolt-on, increased exhaust flow for improved engine performance
Made from true T-304 Stainless steel with CNC machine flanges with TIG and MIG welded construction
Flashark All-in-One Kits
Often, after purchasing the 2009-2013 Nissan 370Z / 2008-2013 Infiniti G37 G37X G37XS 3.7L / 2007-2008 350Z 3.5L Exhaust Header, customers will also purchase other items. Come on, check out Flashark's all-in-one kits and modify your car to your heart's content!

Exhaust Headers vs. Stock Exhaust Manifolds For Infiniti G37 / Nissan 370Z / 350Z
Factory exhaust manifolds on the Infiniti G37 and Nissan 370Z/350Z are designed to meet noise, emissions, and cost requirements rather than maximizing performance. While reliable, they often restrict exhaust flow and limit the engine’s true potential.
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Improved engine breathing: Aftermarket headers reduce exhaust restriction, allowing spent gases to exit more efficiently.
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Stronger throttle response: Less back pressure helps the engine respond faster to driver input.
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More usable power: Gains are felt throughout the rev range, not just at peak RPM.
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Enhanced driving experience: Better flow contributes to a more engaging and responsive feel behind the wheel.
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Optimized sound character: Compared to stock manifolds, headers produce a deeper, more performance-oriented exhaust tone.
For Infiniti G37 and Nissan 370Z/350Z owners, exhaust headers are a foundational upgrade that enhances both performance and driving enjoyment without changing the engine’s core reliability.
Why Choose Flashark Exhaust Headers?
Flashark exhaust headers are designed specifically for Infiniti G37 and Nissan 370Z / 350Z owners who want real, noticeable performance gains without sacrificing daily drivability or long-term reliability. Engineered for the VQ platform, they deliver improved throttle response, stronger acceleration, and a more engaging driving experience you can feel on the street. Built from high-quality stainless steel and featuring a true direct bolt-on design, Flashark headers offer easy installation, durable construction, and a balanced upgrade that enhances power, sound, and overall driving enjoyment at an excellent value.
Vehicle & Engine Overview: Infiniti G37 & Nissan 370Z
The Infiniti G37 and Nissan 370Z are powered by Nissan’s renowned VQ-series naturally aspirated V6 engines, celebrated for their smooth power delivery, high-revving character, and long-term reliability. These engines respond exceptionally well to airflow improvements, making performance upgrades like exhaust headers especially effective.
Upgrading to quality exhaust headers reduces exhaust restriction, helping the engine produce more power while maintaining factory-like drivability. For VQ enthusiasts, headers are considered a core performance upgrade that enhances both stock and lightly modified setups.
FAQ
Q1: Will these exhaust headers fit my Infiniti G37 or Nissan 370Z?
A1: Yes. These Flashark exhaust headers are designed to fit Infiniti G37, G37X, G37XS, Nissan 370Z, and compatible 350Z models within the listed model years.
Q2: What performance benefits can I expect after installing these headers?
A2: Most drivers experience improved throttle response, stronger mid-range pull, and overall better engine responsiveness, along with a more aggressive exhaust note.
Q3: Are these headers suitable for daily driving?
A3: Yes. Flashark exhaust headers are designed to enhance performance while maintaining smooth operation and daily driving comfort.
Q4: Do these exhaust headers require welding or custom fabrication?
A4: No. They feature a direct bolt-on design and do not require cutting, welding, or permanent modifications.
Q5: Will my factory O2 sensors work with these headers?
A5: Yes. The headers are designed to retain factory O2 sensor locations for proper fitment and operation.
Q6: Do exhaust headers change the sound of my Infiniti G37 or Nissan 370Z?
A6: Yes. Headers typically produce a deeper, more aggressive exhaust tone compared to stock manifolds, while remaining refined for street use.
Q7: Are these headers compatible with stock or aftermarket exhaust systems?
A7: These headers are compatible with most stock and aftermarket exhaust setups designed for Infiniti G37 and Nissan 370Z platforms.
Q8: Will installing headers affect engine reliability?
A8: When properly installed, performance exhaust headers do not reduce engine reliability and can improve efficiency by reducing exhaust restriction.
Q9: Is this upgrade suitable for stock engines?
A9: Absolutely. Exhaust headers are one of the most effective upgrades for stock VQ engines and work well as a first performance modification.
Q10: Why are exhaust headers a popular upgrade for Infiniti G37 and Nissan 370Z?
A10: The VQ-series engines respond exceptionally well to improved exhaust flow, making headers a proven way to enhance power, sound, and driving engagement.