SKU: 33-2078 | UPC: 024844026125
K&N Replacement Air Filter BMW 525i L6-2.5L 24V (M50) 1989-1995
K&N 33-2078 is a washable reusable high-flow replacement air filter for 1989-1995 BMW 525i L6-2.5L 24V (M50), 1993 BMW 525iT and 1991-1993 BMW M5. Layered oiled cotton media improves airflow to deliver more horsepower and acceleration while trapping contaminants. This drop-in filter installs directly into your factory air box and lasts for the life of your vehicle with a No-Hassle Lifetime Limited Warranty.
Key Features
- 4 Layers of Protection: Multiple layers of premium cotton gauze with a tacking agent form a mesh that blocks and traps dirt and harmful contaminants for reliable engine protection.
- Clean Every 75,000 Miles: Under normal highway driving, service the filter only every 75,000 miles or 5 years at 15,000 miles per year.
- Easy Drop-In Installation: Pre-oiled filter drops straight into the OEM air box with no cutting or modifications for fast performance gains.
- Increased Horsepower: High-flow media design enhances engine breathing for better acceleration and overall performance.
- Reusable and Cost-Saving: Washable design saves up to $125 over 200,000 miles compared to buying multiple disposable OEM filters.
Product Notes
- Filter measures 10.5 in length x 7.75 in width x 1.063 in height for precise OEM fit.
- Clean using K&N cleaning kit every 75,000 miles. re-oil before reinstalling.
- Product weight 1.1 lbs. ships in compact protective packaging.
Installation Notes
- Professional installation recommended.
- Remove factory filter and drop in K&N 33-2078. no tools or modifications required.
- Compatible with stock air box hardware on listed BMW models.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1989-1995 | BMW | 525i | Base |
| 1993 | BMW | 525iT | Base |
| 1991-1993 | BMW | M5 | Base |
Why Choose K&N?
- Engineered for more airflow and horsepower gains on BMW M50 engines.
- Durable construction with premium materials built to last vehicle lifetime.
- Backed by No-Hassle Lifetime Limited Warranty for stock replacement filters.
Frequently Asked Questions
- Q: Does K&N 33-2078 fit 1992 BMW 525i L6-2.5L M50?
A: Yes, direct fit for 1989-1995 BMW 525i Base, 1993 525iT Base and 1991-1993 M5 Base models. - Q: What warranty covers this filter?
A: No-Hassle Lifetime Limited Warranty applies to stock replacement K&N air filters with standard usage limitations.
Q: What material is used in this air filter?
A: Four layers of oiled cotton gauze media for high-flow filtration and engine protection.
Shipping & Handling
- Method: Ground shipping via UPS or FedEx
- Availability: In stock – ships same or next business day
- Packaging: Original K&N box approximately 11 x 8 x 2 inches
- Weight: 1.1 lbs
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