Description

The K&N Filters Air Filter for BMW 525i/520i 2.0L/2.5L (KNN33-2078) is engineered for high airflow and performance. It is designed as a direct replacement for stock filters and provides excellent filtration while boosting engine efficiency. Compatible with BMW 525i and 520i models equipped with 2.0L and 2.5L engines, this filter is washable, reusable, and built to last for the lifetime of your vehicle. With improved airflow and protection, this filter helps your engine breathe better, ensuring smoother operation.

Features and Specifications:

Compatible Models: BMW 525i/520i
Engine Compatibility: 2.0L / 2.5L
Air Filter Shape: Panel
Air Filter Material: Cotton Gauze
Height: 1.063 in (27 mm)
Outside Length: 12.75 in (324 mm)
Outside Width: 5.75 in (146 mm)
Engineered Power: State-of-the-art air filter media boosts horsepower and acceleration while enhancing overall engine performance.
Rugged Construction: Made from durable, premium materials and advanced construction methods for long-lasting performance.
4 Layers of Protection: Premium cotton gauze treated with a specialized tacking agent blocks and traps harmful contaminants.
Low Maintenance: Clean every 75,000 miles (5 years) under normal highway driving conditions.
Reusable Design: Replacing disposable filters with washable, reusable air filters saves up to $125 over 200,000 miles.
Ultimate Longevity: Lifetime limited warranty on stock replacement filters (limitations apply).
Easy Installation: Pre-oiled and ready for quick, hassle-free installation into the factory air box.
Reduces Waste: This helps reduce landfill waste by eliminating the need for disposable air filters and packaging.