Have Questions?
Professional-grade parts used trackside.
Expert help during business hours.
Encrypted checkout & trusted payments.
Orders ship quickly from regional warehouses.
The K&N 33-2970 High-Flow Drop-In Air Filter is engineered to optimize airflow and engine performance for your 2011 BMW 528i with a 3.0L L6 engine. Crafted with layered, oiled cotton media, this washable and reusable filter captures contaminants effectively while allowing increased air intake, which can lead to noticeable horsepower gains. Designed for effortless installation, this filter fits seamlessly into the factory air box, making upgrades quick and straightforward without the need for modifications.
K&N's durable filter is built to last the entire lifespan of your vehicle, backed by a 10-Year/Million Mile Limited Warranty, offering peace of mind for long-term performance and protection. Whether you're looking to improve throttle response or overall engine efficiency, this high-performance filter is a reliable choice.
The 33-2970 is part of K&N*s renowned line of automotive filters, known for their premium quality and engineering excellence. It is suitable for use in the specific fitment of your BMW 528i, ensuring a perfect fit and optimal airflow. This product is not CARB-legal but complies with other environmental standards, making it a popular upgrade among enthusiasts seeking increased power and engine protection.
Features:
Fitment:
2011 BMW 528i Base
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).
