Exhaust Header for 2008-2013 Infiniti G37/G37X/G37XS, 2009-2013 Nissan 370Z & 2007-2008 350Z 3.5L/3.7L

Save $135.00
FlasharkSKU: FLES08272
7 reviews

· Enhance Sound
· Improves Throttle Response
· Add Up to 8-20 Horsepower
· High-Temperature Inoxidizability
· 0.5 MPG Gas Mileage Improvement

Style: Exhaust Header
Price:
Sale price$120.00 Regular price$255.00

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In stock

Our products are designed based on OEM specifications and are suitable for unmodified vehicles. If your vehicle has been modified, compatibility or installation cannot be guaranteed. We recommend confirming your vehicle's setup or consulting our customer service team before purchase. We're here to help!

Description

Flashark Exhaust Header for 2008-2013 Infiniti G37/G37X/G37XS, 2009-2013 Nissan 370Z & 2007-2008 350Z 3.5L/3.7L

The Flashark Exhaust Header is a high-performance upgrade designed for 2007-2008 Nissan 350Z, 2009-2013 Nissan 370Z, and 2008-2013 Infiniti G37/G37X/G37XS models with 3.5L/3.7L engines. Crafted from durable T-304 stainless steel with a mirror-polished finish, this 3-2-1 design header enhances exhaust flow, boosting horsepower by 15 HP and torque by 20. With a direct bolt-on installation, it eliminates back pressure for improved engine efficiency, making it a superior choice over stock manifolds. Perfect for enhancing both performance and exhaust sound, this header is an essential upgrade for any car enthusiast.

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 Header/Downpipe Exhaust All-In-One Kit for 2009-2013 Nissan 370Z /Infiniti G37 G37X G37XS 3.7L


    Exhaust Header VS Manifold, which is the better choice?

    Exhaust headers and manifolds differ primarily in material, design, and performance. Headers are made from lighter, thinner T-304 stainless steel, while manifolds are typically constructed from thick iron. Headers also feature a longer design with individual tubes for each cylinder, which significantly reduces back pressure—a common issue with manifolds that hinders engine performance.

    By allowing exhaust gases to flow freely without resistance, headers boost engine output and improve exhaust sound. Unlike manifolds, which restrict flow and lower power, exhaust headers optimize efficiency and provide noticeable gains in horsepower and torque. Whether on the street or track, upgrading to headers is essential for anyone looking to maximize engine performance and achieve a more aggressive exhaust note.

    FLASHARK's direct bolt-on headers make the upgrade process simple and convenient, requiring no modifications for installation. Experience the performance benefits with Flashark's expertly crafted headers, designed to enhance your vehicle’s overall driving experience.

    SOME ITEMS YOU MAY ALSO LIKE

    In addition to purchasing this product, Flashark highly recommends that you purchase Flashark and Spelab's new collaborative product, the silicone coolant hose kit; to replace the stock rubber coolant hose in your car's cooling system.

    Are silicone coolant hoses better? Coolant hoses transport the coolant—a mixture of water and antifreeze—from the engine to the radiator and back. The coolant absorbs heat from the engine block and heads and then releases this heat through the radiator, where airflow dissipates it away from the vehicle. This continuous flow is crucial for preventing engine overheating, which can lead to severe damage or failure.

    Customer Reviews

    Based on 7 reviews
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    D
    David (Los Angeles, US)
    good product

    I put these on my 370Z and the sound difference is amazing—deep but not obnoxious. Car pulls harder in the mid-range, and I love how clean the welds are. Worth it for the performance and sound alone.

    J
    Jason M. (Los Angeles, US)
    Perfect Fit and Noticeable Power Gain

    Installed these headers on my 2010 G37X. Fitment was spot on, everything lined up without hassle. The throttle response feels sharper, and I can definitely feel the extra torque on the low end. Great upgrade!

    M
    Mark J. (Los Angeles, US)
    Woke the Car Right Up

    I put these headers on my ’09 370Z and the difference was immediate. The throttle feels sharper, the car pulls harder through the mid-range, and the exhaust note is deeper without being obnoxious. Install was straightforward with the right tools, and everything lined up perfectly.

    K
    Kevin L. (Los Angeles, US)
    Good Fit and Sound

    Installed on my 2009 370Z. Fit was pretty good, no major issues. The car sounds deeper now and throttle response feels better. Noticed a slight power bump too. Happy with it so far.

    J
    Jason M. (Los Angeles, US)
    Solid Upgrade for My G37

    I put these headers on my 2010 G37S about one months ago. Install took a full weekend with basic tools and some patience. They bolted up fine, though the tight space made it a bit tricky. The sound is deeper now, especially above 3k RPM, and I noticed better pull in the mid-range. No CELs so far and everything sealed up well. Overall, happy with the upgrade—definitely feels like the car breathes better now.

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