The 21-815C Performance Cold Air Intake System produces horsepower and torque gains by replacing the restrictive air filter and air intake housing. This air intake system was designed, tuned and dyno-tested to fit specific Audi A4 models. The cone shaped AEM Dryflow air filter is made of a synthetic media which requires no oil and can be used up to 100,000 miles before cleaning (depending on driving conditions). The two piece heat shield keeps hot engine air from entering the air intake system and directs cooler air using the factory inlet scoop. It has been designed to have more air capacity than the factory unit for better air flow. A clear AEM logo also doubles as a window to monitor if the filter needs servicing. The factory vacuum tube mounts directly on the intake tube. The air intake system is backed by AEM’s Lifetime Limited Warranty. Some AEM air intakes are not legal for sale or use in California and other states adopting California emission standards, while others are 50 state legal. View the 21-815C vehicle applications to determine the legal status for each vehicle.
Installation Instructions
User 1
Prompt Shipping and Professional Packaging
We provide a variety of shipping options due to our long-running partnerships with UPS, FedEx and DHL. Our warehouse personnel are well trained and will pack the goods according to our exact and precise specifications. Before shipping your items will be thoroughly inspected and secured. Every day, we deliver to thousands of customers in different countries. This is a sign of our determination to become the largest online retailer worldwide. Both Europe as well as the USA have warehouses and distribution centers.
Note that orders containing more than one item will be subject to a processing period that is based to the particular item.
Prior to shipping the items, our staff will carry out an exhaustive inspection of the products you ordered. Today, most orders will be delivered within 48 hours. The estimated delivery time is between 3-7 days.
Returns
The stock is constantly changing. It's not entirely managed by us since we are involved with multiple entities, including the factory and our storage. Therefore, the actual inventory could alter at any time. It is possible that you will not receive your order after the order has been made.
The period of time is 30 days. Unfortunately, if 30 days have passed since you purchased your product, we are unable to provide a refund or exchange.
The item must not be in use and must be in the original packaging. The item must be in the original packaging.
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