COBB Tuning Big SF Intake System for R35 Nissan GT-R



COBB Tuning Big SF Intake System

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COBB Tuning Big SF Intake System for R35 Nissan GT-R

From factory settings to high-performance builds, the R35 ECU relies on a mass airflow (MAF) sensor situated within the stock intake system to gauge airflow. However, as modifications accumulate and power increases, airflow can surpass the MAF sensor’s capacity, leading to inaccurate air mass measurements and consequently improper fuel delivery by the ECU. The big SF intake addresses this issue by enlarging the inner diameter of the intake tubing, effectively expanding the intake cross-section and enabling the MAF sensor to detect lower readings for the same volume of air intake. This adjustment provides the sensor with the necessary capacity to accurately measure airflow levels exceeding those intended for the stock system. Leveraging the big SF intake, COBB tuning has facilitated power builds exceeding 600 horsepower and torque at the wheels, marking a remarkable 40% enhancement over stock GT-R configurations

Why COBB Tuning?

  • Crafted from 3.0-inch diameter aluminum tubing, featuring K&N cone filter elements and 3-ply silicone couplers, the big SF intake system is designed to unlock substantial power increases. It seamlessly integrates with stock GT-R models using the big SF off-the-shelf maps, making it an ideal choice for drivers aiming for significant upgrades in the future.


  • Increased Induction Sound: Experience heightened engine growl and clearer turbo spool sounds with the incorporation of the COBB tuning SF intake system. This intake system significantly amplifies turbocharger induction noise and bypass valve venting sounds, offering a more pronounced auditory experience.
  • Easy to Install: The COBB tuning SF intake is engineered for effortless installation, eliminating the need for any car modifications or bumper skin removal. With no cutting, trimming, or removal of the bumper support necessary, the installation process can be easily accomplished using basic hand tools. Simply replace the stock airbox with the SF intake unit and securely bolt it into position within minutes.
  • Free off-the-shelf Calibrations: Adjusting the MAF sensor calibration requires corresponding tuning adjustments to recalibrate the ECU, and COBB tuning offers comprehensive support in this aspect. Included in their offerings are a set of complimentary Accessport big SF intake off-the-shelf maps tailored for all compatible GT-R models. These maps specifically cater to vehicles equipped with the big SF intake and are readily accessible for download from the Nissan GT-R Accessport map database.

What`s Included?

  • Mandrel bent 3.0″ aluminum tubing
  • 3-ply steel reinforced silicone
  • Pre-oiled, cleanable, reusable custom filter element
  • No cutting or trimming required
  • Powder coated wrinkle black finish


  • 2009-2011 Nissan GT-R: R35-CBA
  • 2012-2016 Nissan GT-R: R35-DBA
  • 2017-2018 Nissan GT-R: R35-EBA


  • 50 State Legal
  • This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer’s application guide because it has a California Air Resources Board (CARB) Executive Order (EO) number: D-660-63

About COBB Tuning

With over two decades of Research and Development, COBB Tuning has developed upgrade paths that equip vehicles to transform from standard factory models into powerful, drivable machines that enhance daily driving experiences. Each upgrade path is tailored to optimize the power of the Accessport, hard parts, and their off-the-shelf maps. Originating with a focus on Subaru, COBB Tuning has expanded its range to include products for BMW, Ford, Mazda, Porsche, Mitsubishi, Nissan, Audi, Volkswagen, and Honda. Their area of expertise covers engine management electronics, intake tract components, exhaust systems for turbocharged engines, turbo kits, drivetrain components, and suspension parts.

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