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The K&N Engineering RU-4870 universal air filter is designed for a wide range of applications including racing vehicles, generators, snowmobiles, tractors, and other equipment that requires reliable air filtration. Crafted with durable molded pliable rubber flanges, this filter absorbs vibrations and provides a secure fit, ensuring optimal performance even in challenging operating conditions. The flanges can be stretched up to 1/16 inch (1.5mm) to accommodate slight size variations, making it highly adaptable for various setups. This feature makes the K&N universal air filter a versatile choice for many different vehicle and equipment configurations. Made with quality materials, this filter is washable and reusable, allowing for cost-effective maintenance without sacrificing filtration efficiency. It is suitable for applications where a secure, vibration-resistant connection is essential, and its design accommodates various angles and offset diameters of air intakes. The filter*s construction emphasizes durability and ease of installation, making it an excellent upgrade for performance-oriented enthusiasts and professional mechanics alike. Whether you*re upgrading a Honda Prelude or Civic from the late 1990s to early 2000s, or using it in other compatible machinery, this filter ensures clean airflow and sustained engine performance. The product is compliant with Prop 65 regulations, adding an extra layer of safety and environmental consideration to its design. Overall, the K&N RU-4870 is a dependable, high-performance universal air filter suitable for a broad spectrum of automotive and equipment applications, offering long-lasting service and maintenance savings.
Features:
Fitment:
1997 Honda Prelude Base
1997 Honda Prelude Type SH
1998 Honda Prelude Base
1998 Honda Prelude Type SH
1999 Honda Civic CX
1999 Honda Civic DX
1999 Honda Civic EX
1999 Honda Civic GX
1999 Honda Civic HX
1999 Honda Civic LX
1999 Honda Civic Si
1999 Honda Civic Value Package
1999 Honda Prelude Base
1999 Honda Prelude Type SH
1999 Jeep Grand Cherokee Laredo
1999 Jeep Grand Cherokee Limited
1999 Mazda Miata 10th Anniversary
1999 Mazda Miata Base
2000 Honda Civic CX
2000 Honda Civic DX
2000 Honda Civic EX
2000 Honda Civic GX
2000 Honda Civic HX
2000 Honda Civic LX
2000 Honda Civic Si
2000 Jeep Grand Cherokee Laredo
2000 Jeep Grand Cherokee Limited
2000 Mazda Miata Base
2000 Mazda Miata LS
2000 Mazda Miata SE
2000 Toyota Celica GT
2000 Toyota Celica GTS
2001 Jeep Grand Cherokee Laredo
2001 Jeep Grand Cherokee Limited
2001 Mazda Miata Base
2001 Mazda Miata LS
2001 Mazda Miata SE
2001 Toyota Celica GT
2001 Toyota Celica GTS
2002 Acura RSX Base
2002 Acura RSX Type-S
2002 Honda Civic Si
2002 Honda CR-V EX
2002 Honda CR-V LX
2002 Jeep Grand Cherokee Laredo
2002 Jeep Grand Cherokee Limited
2002 Jeep Grand Cherokee Sport
2002 Mazda Miata Base
2002 Mazda Miata LS
2002 Mazda Miata SE
2002 Nissan Altima Base
2002 Nissan Altima S
2002 Nissan Altima SL
2002 Toyota Celica GT
2002 Toyota Celica GTS
2003 Acura RSX Base
2003 Acura RSX Type-S
2003 Honda Accord DX
2003 Honda Accord EX
2003 Honda Accord LX
2003 Honda Civic Si
2003 Honda CR-V EX
2003 Honda CR-V LX
2003 Hyundai Tiburon GT
2003 Jeep Grand Cherokee Laredo
2003 Jeep Grand Cherokee Limited
2003 Mazda 6 i
2003 Mazda 6 S
2003 Mazda Miata Base
2003 Mazda Miata LS
2003 Mazda Miata SE
2003 Mazda Miata Shinsen
2003 Nissan Altima Base
2003 Nissan Altima S
2003 Nissan Altima SL
2003 Toyota Celica GT
2003 Toyota Celica GTS
2004 Acura RSX Base
2004 Acura RSX Type-S
2004 Acura TL Base
2004 Acura TSX Base
2004 Honda Accord DX
2004 Honda Accord EX
2004 Honda Accord LX
2004 Honda Civic Si
2004 Honda CR-V EX
2004 Honda CR-V LX
2004 Hyundai Tiburon GT
2004 Jeep Grand Cherokee Laredo
2004 Jeep Grand Cherokee Limited
2004 Jeep Grand Cherokee Special Edition
2004 Mazda 6 i
2004 Mazda 6 S
2004 Mazda Miata Base
2004 Mazda Miata LS
2004 Mazda Miata Mazdaspeed
2004 Nissan Altima Base
2004 Nissan Altima S
2004 Nissan Altima SL
2004 Toyota Celica GT
2004 Toyota Celica GTS
2005 Acura RSX Base
2005 Acura RSX Type-S
2005 Acura TL Base
2005 Acura TSX Base
2005 Honda Accord DX
2005 Honda Accord EX
2005 Honda Accord LX
2005 Honda Accord SE
2005 Honda Civic Si
2005 Hyundai Tiburon GT
2005 Hyundai Tiburon SE
2005 Kia Spectra EX
2005 Kia Spectra LX
2005 Kia Spectra SX
2005 Kia Spectra5 Base
2005 Mazda 6 i
2005 Mazda 6 S
2005 Mazda Miata Base
2005 Mazda Miata LS
2005 Mazda Miata Mazdaspeed
2005 Nissan Altima S
2005 Nissan Altima SL
2006 Acura RSX Base
2006 Acura RSX Type-S
2006 Acura TL Base
2006 Acura TSX Base
2006 Honda Accord EX
2006 Honda Accord LX
2006 Honda Accord LX Special Edition
2006 Honda Accord Value Package
2006 Kia Spectra EX
2006 Kia Spectra SX
2006 Kia Spectra5 Base
2006 Mazda 6 i
2006 Mazda 6 Mazdaspeed
2006 Mazda 6 S
2006 Nissan Altima Base
2006 Nissan Altima S
2006 Nissan Altima SL
2007 Acura TL Base
2007 Acura TL Type-S
2007 Acura TSX Base
2007 Honda Accord EX
2007 Honda Accord EX-L
2007 Honda Accord LX
2007 Honda Accord Special Edition
2007 Honda Accord Value Package
2007 Kia Spectra EX
2007 Kia Spectra LX
2007 Kia Spectra SX
2007 Kia Spectra5 SX
2007 Mazda 6 i
2007 Mazda 6 Mazdaspeed
2007 Mazda 6 S
2008 Acura TL Base
2008 Acura TL Type-S
2008 Acura TSX Base
2008 Kia Spectra EX
2008 Kia Spectra LX
2008 Kia Spectra SX
2008 Kia Spectra5 SX
2008 Mazda 6 i
2008 Mazda 6 S
2015 Subaru WRX STI Base
2015 Subaru WRX STI Launch Edition
2015 Subaru WRX STI Limited
2016 Subaru WRX STI Base
2016 Subaru WRX STI Limited
2016 Subaru WRX STI Series.HyperBlue
2017 Subaru WRX STI Base
2017 Subaru WRX STI Limited
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).
