K&N 33-2496 Washable High-Flow Engine Air Filter

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Product guide

K&N 33-2496 Washable High-Flow Engine Air Filter

High-Flow: The K&N 33-2496 is a washable, reusable replacement engine air filter designed for select Cadillac and Chevrolet vehicles. Its reusable design may suit owners seeking an alternative to repeatedly replacing disposable filters, but the stated vehicle fit and cleaning interval depend on the application and driving conditions.

At a glance

Reusable filter is washable and pre-treated for installation in the factory air box.
Four layers of cotton gauze are described as trapping contaminants.
K&N claims cleaning is needed every 75,000 miles under normal highway driving conditions.
The listing describes a limited lifetime warranty, with limitations applying.

Price

$55.19Save 20%

Reference price: ~~$68.99~~

Price checked: Nov 14, 2026

View offer

Often bought together

K&N LIFETIME Cabin Air Filter: Premium, Washable, Clean Air for your Cabin | Compatible with 2010-2024 Buick/Cadillac/Chevrolet: (See Product Description for Select Models), VF2040

$38.39

K&N Air Filter Cleaning Kit: Aerosol Filter Cleaner and Oil Kit; Restores Engine Air Filter Performance; Service Kit-99-5000, Multi

$23.99

Pros and cons

Pros

Reusable construction avoids routine replacement of a disposable filter when maintained and reused.
Pre-treated design is described as ready to install in the factory air box.
The product listing identifies several Cadillac and Chevrolet applications.

Technical specifications

12 specifications

Identity
Brand	K&N
Model	33-2496
Product type	Replacement Engine Air Filter
Fit type	Vehicle Specific Fit
OEM equivalent part numbers	20857930, A3178C

Filter and maintenance
Filter media	Multiple layers of premium cotton gauze treated with a specially-designed tacking agent
Cleaning interval claim	every 75,000 miles under normal highway driving conditions
Installation description	pre-treated and ready to drop into your factory air box

Dimensions and installation
Weight listed	0.6 kg

Vehicle applications
Compatibility listed	2013-2019 CADILLAC ATS 2014-2019 CADILLAC CTS 2014-2014 CADILLAC CTS II 2016-2024 CHEVROLET Camaro

Warranty and origin
Warranty description	1,000,000 Miles
Country of manufacture claim	USA

What to know before buying

Listing details to confirm

Vehicle fit details are not fully consistent: the highlighted fit list names select 2013-2024 Cadillac and Chevrolet models, while the detailed compatibility list specifies 2013-2019 ATS, 2014-2019 CTS, 2014 CTS II and 2016-2024 Camaro. Confirm the exact year, model and engine application before ordering. The listing also gives cleaning guidance for normal highway driving and describes the warranty with differing terms, including a 1,000,000-mile description and a limited lifetime claim with limitations. The 75,000-mile interval is not stated for other driving conditions.

What’s in the box

Included

1 filter for Cadillac ATS V6 3.6L F/I, 2013-2017 application

Who is it for?

A good fit for

Drivers with a confirmed compatible vehicle who prefer a washable, reusable engine air filter.
Owners looking for a filter described as ready to fit the factory air box.

Less suited to

Buyers who need a disposable filter or cannot confirm that this part fits their exact vehicle.

K&N 33-2496 Washable High-Flow Engine Air Filter · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.7 / 5 · 372 ratings

5 stars87%87%
4 stars8%8%
3 stars1%1%
2 stars0%0%
1 star4%4%

Customer feedback reports positive impressions of quality, fit, installation, performance, acceleration and durability, with some customers mentioning a slight horsepower gain and potential savings from reuse. Noise feedback is mixed. These reports are customer perceptions, not performance measurements. The fit and installation comments are most relevant when the exact vehicle application is confirmed, while the listing's washable design provides context for comments about reuse.

Positive themes

Customers report good quality and performance, and some describe the fit and installation positively.
Some customers report improved acceleration and durability, and one mentions a slight horsepower gain.

Mixed feedback

Noise feedback is mixed, with some customers saying the filter is not loud.
Some customers describe reuse as a way to avoid buying another filter. Individual experiences may vary.

Frequently asked questions

Which vehicles does the listing say this filter fits?

The detailed compatibility list names 2013-2019 Cadillac ATS, 2014-2019 Cadillac CTS, 2014 CTS II and 2016-2024 Chevrolet Camaro. Another listing highlight gives a broader range, so verify the exact vehicle application before buying.

How often does K&N say it needs cleaning?

The listing says every 75,000 miles under normal highway driving conditions, based on 15,000 miles driven per year. It does not establish that interval for other driving conditions.

Is this filter ready to install?

The listing describes it as pre-treated and ready to drop into the factory air box. Confirm the fit for your specific vehicle.

What warranty is stated?

The listing includes both a 1,000,000-mile warranty description and a limited lifetime warranty claim with limitations. Review the applicable warranty terms for this specific filter.