Injen® SP1977P - SP Series Short Ram Intake System (3.5L V6, Polished)

Injen Performance Air Intake Systems
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Product Details

SP Series Polished Short Ram Intake System (SP1977P) by Injen®. The Short Ram SP Series is a traditional, underhood air intake system that takes the place of your factory airbox and air filter, and the factory air intake tube. The EA Nanofiber air filter allows increased airflow and the aluminum alloy intake tube smoothes the airflow path into the engine. The increased airflow and velocity results in more power, increased acceleration and better fuel economy. Up to 12.4 HP and 11.6 ft.lbs TQ Gain.

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  • Improves airflow into the engine
  • Uses the patented MR Technology tuning process to ensure the air/fuel ratio is within optimum limits
  • Increases horsepower
  • Improves acceleration and fuel economy
  • Easily installs under the hood
  • Every system includes the EA Nanofiber dry air filter
  • Air intake pipe constructed of mandrel-bent 6061 aluminum for smooth airflow
  • Comes complete with all necessary mounting hardware and comprehensive installation instructions
  • Street legal in all States
  • Backed by a Limited Lifetime Warranty
  • Proudly manufactured in the USA

Just because the Injen SP Series Short Ram is a traditional "underhood" system, don't think it's any less of a performance air intake system. The SP Series Short Ram is a product of the same rigorous development and testing as Injen's other air intake systems. It's made of the same quality materials and features the same high flow EA Nanofiber dry air filter. The air intake tube is made of 6061, T-6 aluminum alloy, for strength, light weight and smooth airflow. All connections are made with quality silicone connectors that provide flexibility, while maintaining strength and thermal stability. The stainless steel hose clamps provide a solid seal that won’t loosen or deteriorate. The end result is a quality system that will improve performance and look great under the hood.

MR technology

Where the SP Series Short Ram differs from conventional short ram systems is the inclusion of Injen's patented MR (Mega Ram) Technology. MR Technology allows this system to attain increased intake airflow and performance while maintaining a safe air/fuel ratio. Injen steps down the diameter of the intake tube where the Mass Air Flow (MAF) sensor mounts, enabling the sensor to detect airflow within established parameters. The engine control computer can then maintain the proper air/fuel ratio and optimize horsepower and torque. Simply put, MR Technology tunes the intake system to avoid the necessity of recalibrating the MAF sensor, and prevents your engine from running too lean or too rich. With MR Technology, Injen created "The World's First Tuned Intake System", delivering optimum performance with a factory safe air/fuel ratio.

The SP Short Ram system installs in place of your factory airbox and air intake tube. It's carefully engineered, with CNC machined brackets and adapters, to ensure an exact fit. Installation is fast and simple and can be completed under the hood. There's no need to get underneath the car or do any significant component relocating. Everything necessary for installation is supplied, including comprehensive instructions. The SP Series Short Ram Air Intake System is backed by a Limited Lifetime Warranty.

Brand: Injen       Part Number: SP1977P       UPC: 843115013660
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Injen Technology Company, Ltd., based in Pomona, California, was formed as a sister company to RD Metal Works in 1998, to utilize the experience and design capabilities that RD Metal Works had gained designing and manufacturing air intake kits for leading air filter and intake manufacturers. Since that time, the company has made it a point to stay at the forefront of performance technology, continually setting new standards for quality and improving their engineering and manufacturing capabilities. This enables Injen to regularly introduce new, cutting edge products to market and has required the company to continually expand to meet the demand for those products. Today, Injen continues to set the industry benchmark for innovation, styling and technology.

Product Reviews (2)

Every Customer can leave a review about our service and the product that was purchased. In order to leave your review for your new product, please follow the link in the email you receive after completing your purchase. You can rate appearance, ease of installation, price/value and product quality.

Injen® SP1977P - SP Series Short Ram Intake System (3.5L V6, Polished)
Injen® - SP Series Cold Air Intake System - Polished
Average Rating:  5  4.8 of 5
2009 Nissan Altima | Posted by | (Anthem, AZ)

This intake system is well worth the money! It looks clean, simple to install and produces some gains. I haven't been able to any dyno runs to see if hp went up but the throttle response is so much better now with it. And again it makes the car sound a lot nicer! 09 Altima coupe 3.5l.

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2012 Nissan Altima | Posted by | (Gibsonville, NC)

I absolutely love this intake. From the moment I opened the box I knew it was Premium Quality! It is nothing shy of perfect. The installation is so easy that even a first time replacement is done simply. I know this because it was my first time replacing a whole intake system, and it was done just by myself. It only had taken me 1 1/2 hours from start to finish, just follow the instructions. Then, when I finally took it for a drive, the sound caught me by surprise, because it was louder than expected. The best part about my intake though is that I used to get 32 mpg highway. Now, I get whomping 46 mpg highway! Only when I drive it like a town car though. If I race the engine, I only have about a 3-4 mpg increase. This intake was placed on a 2011 Nissan Altima 2.5 S Sedan.

4 people found this review helpful.
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Vehicle FitmentThis part is compatible with 6 vehicle(s)
Year Make Model Fitment Notes
2012 Nissan Altima    3.5L V6
2011 Nissan Altima    3.5L V6
2010 Nissan Altima    3.5L V6
2009 Nissan Altima    3.5L V6
2008 Nissan Altima    3.5L V6
2007 Nissan Altima    3.5L V6
Product Reviews (2)
Product Reviews (2)
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