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The K&N 03-04 Toyota 4Runner V8-4.7L AirCharger Performance Intake System is engineered to enhance your vehicle's airflow, leading to noticeable increases in horsepower and torque. Constructed from high-density polyethylene (HDPE) using rotational molding technology, this intake system ensures durability and maximum airflow efficiency. Its design optimizes airflow to your engine, promoting better combustion and overall engine performance. The system includes a washable, reusable High-Flow Air Filter with oiled cotton media, capable of going up to 100,000 miles between filter services under normal highway driving conditions, reducing maintenance time and costs. The oversized, conical filter shape improves airflow volume and filtration, contributing to improved throttle response and engine efficiency. A custom heat shield is integrated to protect intake air from the high temperatures of your engine bay, ensuring cooler, denser air reaches your engine for optimal performance. Installation is straightforward, typically taking less than 90 minutes, making it accessible for DIY enthusiasts and professional installers alike.
This performance intake is designed to fit specific models, including the 2003 and 2004 Toyota 4Runner and Lexus GX470, providing a tailored upgrade for these vehicles. While not California Air Resources Board (CARB) approved, it is compatible with many vehicles outside California's pollution control regulations. The system is backed by the K&N No-Hassle Lifetime Limited Warranty, offering long-term assurance of quality and performance. Please review the product specifications for CARB status if applicable to your vehicle. This intake system is an excellent choice for drivers seeking to improve engine response, increase horsepower, and enhance overall vehicle performance without extensive modifications.
Features:
Fitment:
2003 Lexus GX470 Base
2003 Toyota 4Runner Limited
2003 Toyota 4Runner Sport
2003 Toyota 4Runner SR5
2004 Lexus GX470 Base
2004 Toyota 4Runner Limited
2004 Toyota 4Runner Sport
2004 Toyota 4Runner SR5
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).
