Looking to add an estimated horsepower gain of 14.2 HP to your Infiniti G37? Then how about adding a K&N Performance Air Intake Kit! These air intake kits are designed to improve throttle response and engine sound. The K&N air intake kits are easy to install, usually in 90 minutes or less and they replace the stock air intake system.
These performance air intake kits last up to 100,000 miles before service is required (depending on driving conditions). Grab your K&N performance air intake kit over on Amazon for around $397.99 plus shipping and handling.