K&N Apollo Closed Air Intake Kit for BMW 3-Series (E91)
K&N APOLLO CIS® Universal Closed Air Intake Systems
- Designed to Increase Horsepower & Acceleration
- Washable/Reusable K&N High-Flow Air Filter
- Increases Volumetric Efficiency
- Reduces Heat Build Up
- Minimizes Air Turbulence
- High Air Flow with Excellent Filtration
- K&N Million Mile Limited Warranty®
K&N Apollo Closed Air Intakes
The K&N Apollo CIS (Closed Intake System) is a universal type air intake system incorporating a washable/reusable K&N High-Flow Air Filter. The Apollo's specially designed shape increases volumetric efficiency and provides the benefits of an open cone filter and standard air box in one unit. Heat buildup is reduced which keeps the intake charge cool. Smooth internal features minimize air turbulence and maximize air flow.
The Apollo's outer shell is made of a durable lightweight material that helps keep incoming air cool as it enters the engine chamber. K&N's Apollo system includes a cold air hose with a specially designed radius end cap so cooler outside air can be directed into the engine. The Apollo has a 70mm base flange. It is supplied with a pack of vent adaptors to incorporate most engine breathers and temperature sensors from the original air box assembly back into the Apollo. Included vent sizes are 1/2" outside diameter, 3/8" outside diameter, 1/2" outside diameter, 5/8" outside diameter and a blanking plug if a vent adaptor is not required.
Picture for illustration purposes only - actual kit may differ from shown.
AvailabilityMost of our K&N products are stocked and ship within 2 working days. To make sure you’re not hit with unexpected delays, please email us at email@example.com
Shipping and Returns
All car parts are sent via a tracked delivery service or courier, depending on the size and weight of the shipment.
Shipping to the UK can vary depending on manufacturer, but we advise customers to expect delivery of their order within 3-5 working days.
If you aren't happy with your order for whatever reason, you are able to make a return within 30 days of purchase for a full refund. To find out more about our returns policy, visit our returns page
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