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Enhance your Cadillac SRX with the K&N Engineering Part Number KNn33-2356 high-flow replacement air filter. Designed with advanced layered, oiled cotton media, this filter improves airflow to your engine, which can lead to increased horsepower and overall vehicle performance. Its durable construction ensures that it is washable and reusable, providing a long-lasting solution that maintains optimal engine protection while reducing filter replacement frequency. Backed by K&N's 10-Year/Million Mile Limited Warranty, this filter is engineered to last for the entire lifespan of your vehicle and offers a straightforward drop-in installation into your factory air box, making upgrading simple and efficient. The K&N high-flow air filter is a popular choice among enthusiasts seeking superior airflow and engine efficiency without compromising protection. Suitable for models including the Cadillac SRX from 2004 to 2006 and the Cadillac STS from 2005 to 2009, this filter is an excellent upgrade for those looking to boost their vehicle*s performance while maintaining factory standards.
Features:
Fitment:
2004 Cadillac SRX Base
2005 Cadillac SRX Base
2005 Cadillac STS Base
2006 Cadillac SRX Base
2006 Cadillac STS Base
2007 Cadillac SRX Base
2007 Cadillac STS Base
2008 Cadillac SRX Base
2008 Cadillac STS Base
2008 Cadillac STS Platinum
2009 Cadillac SRX Base
2009 Cadillac STS Base
2009 Cadillac STS Platinum
2010 Cadillac STS Base
2011 Cadillac STS 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).
