EVE400-140-1 / 400-140-1 - Application Notes AIRAID Intake systems are specially designed to take full advantage of today's vehicle technology. Performance is acquired through the latest in dyno-proven techniques and innovative designs to improve intake system efficiency. Results have seen an Airflow improvement of up to 20% and as high as an 18 horsepower gain. All AIRAID kits are installer-friendly and usually take no longer than 30 minutes to install.