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The Injen SP1584BLK Short Ram Cold Air Intake system is engineered specifically for the 2017-2020 Honda Civic Si equipped with the 1.5L turbocharged engine. Designed in Pomona, California, this intake system features a large 2.75-inch aluminum intake tube that enhances airflow, allowing the turbo and engine to breathe more freely for increased performance. The smooth transitions within the intake tube reduce restrictions, resulting in optimized power delivery and improved throttle response. The system includes a fully serviceable SuperNano-Web dry air filter, which maintains peak filtration efficiency while providing maximum airflow and durability. Additionally, the intake incorporates Injen's patented MegaRam (MR) Technology and Air Fusion Technology, enabling precise tuning during manufacturing to deliver consistent performance gains without the need for external electronic tuning devices. The included custom heatshield helps keep inlet air temperatures low, ensuring optimal air density and power output under demanding conditions. This intake system offers dyno-proven horsepower gains of up to 16 HP and 14 lb-ft of torque, making it a robust upgrade for enthusiasts seeking both performance and reliability. The product is finished in a sleek black laser coat, adding a sporty aesthetic to the engine bay, and it features a limited lifetime warranty for peace of mind. Please note, this product is not CARB exempt and is not legal for use on vehicles registered in California. Easy installation, high-quality construction, and proven performance make the Injen SP1584BLK a top choice for enhancing the power and efficiency of your Honda Civic Si.
Features:
Fitment:
2017 Honda Civic Si
2018 Honda Civic Si
2019 Honda Civic Si
2020 Honda Civic Si
2021 Toyota Tundra 1794 Edition
2021 Toyota Tundra Limited
2021 Toyota Tundra Platinum
2021 Toyota Tundra SR
2021 Toyota Tundra SR5
2021 Toyota Tundra Trail
2021 Toyota Tundra TRD Pro
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
