aFe MagnumFLOW OER Pro DRY S Air Filter Pair - 2009-2012 Nissan 370Z / Infiniti G37 VQ37VHR (31-10196)

Upgrade your 370Z or G37's air filtration with the aFe MagnumFLOW OER Pro DRY S air filter pair. Designed as a direct OE replacement for the 2009-2012 Nissan 370Z and Infiniti G37 VQ37VHR dual-intake system, this pair of Pro DRY S filters delivers improved airflow over the factory paper filters with oil-free dry synthetic filtration media — washable, reusable, and maintenance-friendly.

Note: Sold as a pair (2 filters) to replace both factory air filters on the VQ37VHR dual-intake system.

Key Features:

• Pro DRY S oil-free dry synthetic filtration media
• Sold as a pair (2 filters) for VQ37VHR dual-intake system
• Direct OE replacement fitment
• 100% polyurethane frame construction
• Multiple layers of progressively finer mesh gauze media
• Washable and reusable
• Tall open evenly spaced pleats for excellent dust holding capacity
• Integrated urethane bump seal for leak-free fitment
• 99.2% filtration efficiency
• aFe Power quality and engineering

Performance Benefits:

• Improved Airflow: Higher flow than factory paper filter for improved horsepower and torque
• Oil-Free: Pro DRY S requires no oil application — clean and reinstall
• Washable & Reusable: Multiple cleaning cycles for long service life
• 99.2% Efficiency: Excellent filtration efficiency protects the VQ37VHR engine
• Extended Service Intervals: Tall pleats provide excellent dust holding capacity
• Leak-Free Seal: Integrated urethane bump seal ensures no unfiltered air bypass

Specifications:

• Brand: aFe Power
• Part Number: 31-10196
• Product: MagnumFLOW OER Pro DRY S Air Filter Pair
• Media Type: Pro DRY S (oil-free dry synthetic)
• Filtration Efficiency: 99.2%
• Frame Material: 100% polyurethane
• Quantity: Pair (2 filters)
• Maintenance: Washable and reusable
• Barcode: 31-10196

Fitment Information:

• 2009-2012 Nissan 370Z (Z34) - VQ37VHR 3.7L V6
• 2008-2013 Infiniti G37 Coupe / Sedan / Convertible (V36) - VQ37VHR 3.7L V6
• Note: VQ37VHR uses a dual air intake system requiring two filters - this listing includes both
• Note: Direct OE replacement - no modification required
• Installation: DIY-friendly drop-in replacement

What's Included:

• 2x aFe MagnumFLOW OER Pro DRY S air filters (31-10196)
• Installation instructions
• Note: No oil required for Pro DRY S media

Installation Notes:

• Open factory airbox on both sides of engine bay
• Remove factory paper air filters
• Install aFe Pro DRY S filters in factory airbox locations
• Ensure integrated urethane bump seal seats correctly in airbox
• Close airbox and secure clips
• No oil application required for Pro DRY S media

Pro DRY S Media - Oil-Free Convenience:

The Pro DRY S (PDS) media is aFe's oil-free dry synthetic filtration option, designed for drivers who prioritize convenience and ease of maintenance. Unlike oiled gauze filters (such as aFe's Pro 5R media), Pro DRY S requires no oil application after cleaning — simply wash with water, allow to dry, and reinstall. This eliminates the risk of over-oiling, which can contaminate mass airflow (MAF) sensors on vehicles like the 370Z and G37 that use MAF-based fuel management. Pro DRY S provides 99.2% filtration efficiency, excellent airflow improvement over factory paper filters, and is particularly well-suited for street driving and dusty conditions where easy maintenance is a priority.

Why a Pair? VQ37VHR Dual-Intake System:

The Nissan VQ37VHR 3.7L V6 engine used in the 370Z and G37 uses a dual air intake system with two separate airboxes — one on each side of the engine bay. Each airbox contains its own air filter, meaning a complete filter replacement requires two filters. The aFe 31-10196 is sold as a pair to provide both filters needed for a complete replacement. Replacing only one filter is not recommended, as mismatched filter flow characteristics between the two sides can affect the engine's air-fuel balance.

OER (OE Replacement) Design:

The MagnumFLOW OER series is designed as a direct drop-in replacement for the factory air filter, using the factory airbox without modification. This is the simplest and most cost-effective way to improve airflow on the 370Z and G37 — no intake tube, heat shield, or airbox modifications required. The OER filter uses the same dimensions as the factory filter and seats in the factory airbox using the integrated urethane bump seal, ensuring a leak-free fit that prevents unfiltered air from bypassing the filter.

Washable and Reusable - Long-Term Value:

Unlike factory paper filters that must be replaced every 15,000-30,000 km, the aFe Pro DRY S filter is washable and reusable for multiple cleaning cycles. The filter should be cleaned when it appears visibly dirty or when airflow restriction becomes noticeable — typically every 50,000-80,000 km under normal driving conditions, or more frequently in dusty environments. The tall, evenly spaced pleats provide excellent dust holding capacity, extending the service interval between cleanings. Over the life of the vehicle, the reusable filter provides significant cost savings compared to repeated factory paper filter replacements.

MAF Sensor Safety - Pro DRY S Advantage:

The 370Z and G37 VQ37VHR use a mass airflow (MAF) sensor to measure incoming air for fuel management. Oiled air filters can contaminate MAF sensors if over-oiled, causing inaccurate readings and potential drivability issues. The Pro DRY S media eliminates this risk entirely — no oil is used, so there is no possibility of MAF contamination from the filter. This makes Pro DRY S the preferred choice for MAF-equipped vehicles like the 370Z and G37.

Why aFe Power?

aFe Power is one of the most respected names in performance air intake and filtration products, trusted by enthusiasts and professional racers worldwide. Their MagnumFLOW filter series is engineered for each specific application, ensuring correct fitment and optimized filtration for the target engine. aFe's extensive coverage of Nissan and Infiniti applications, including the VQ37VHR platform, ensures their filters are engineered to the correct specifications for reliable, long-term performance.

Perfect For:

• 2009-2012 Nissan 370Z owners wanting improved airflow with OE replacement convenience
• Infiniti G37 owners seeking washable, reusable air filter upgrade
• VQ37VHR builds wanting oil-free filtration to protect MAF sensor
• 370Z and G37 owners wanting long-term cost savings over repeated paper filter replacements
• Anyone seeking aFe MagnumFLOW OER Pro DRY S quality for their VQ37VHR platform

Perfect For: 2009-2012 Nissan 370Z and Infiniti G37 VQ37VHR owners seeking aFe MagnumFLOW OER Pro DRY S air filter pair for improved airflow, oil-free maintenance, and MAF sensor protection.

Pro Tip: Clean the filters every 50,000-80,000 km under normal conditions — Pro DRY S is easy to service with just water, no oil required, making it one of the lowest-maintenance performance filter upgrades available for the 370Z and G37.

Pair of 2 Filters: Pro DRY S oil-free media. 99.2% efficiency. Washable and reusable. Direct OE replacement. Fits 370Z (2009-2012) and G37 VQ37VHR. No MAF contamination risk.

Upgrade your 370Z or G37's filtration with aFe MagnumFLOW OER Pro DRY S — oil-free, washable, 99.2% efficiency, complete pair for the VQ37VHR dual-intake system.