K&N Performance Air Filter for Porsche 718 Boxster and Cayman (2017–Present)

Description

The K&N 33-3078 High-Flow Replacement Air Filter is engineered to boost intake airflow and engine efficiency for cars like the Porsche 718 Boxster and Cayman. Its layered and oiled cotton-gauze media offers far greater breathing capability than standard paper filters, while still delivering strong filtration — providing crisper throttle response and potentially smoother power delivery. As a washable, reusable filter with a lifetime limited warranty, it’s a smart, long-term upgrade that blends performance with convenience and sustainability.

Fitment Notes

• Designed to fit Porsche 718 Boxster and 718 Cayman (982 generation, 2017-on). 

• Installs as a drop-in replacement for the factory air filter — no modification, adapters, or tuning required.

• Uses OEM airbox sealing geometry to maintain proper intake sealing and filtration integrity when properly installed.

Included

• One (1) washable, reusable high-flow air filter (panel-style, pre-oiled)

• Factory-fit sealing lip/frame to ensure proper airbox closure and airtight seal

Product Specs

• Media: Multi-layer cotton gauze with protective mesh — designed to flow more air than stock paper filters.

• Dimensions: Approximately 11.563 in (length) × 11.125 in (width) × 1.625 in (height). 

• Washable / Re-usable: Yes — can run for many years if cleaned and re-oiled at proper intervals (typically every ~75,000 miles under normal driving conditions). 

• Filtration Efficiency: Up to 99% — multiple layers of gauze and treatment media work to trap contaminants while maximizing flow. 

• Construction: Durable washable media with molded sealing frame to ensure a tight airbox fit and minimize leaks.

Product Features

• Improved Airflow & Engine Breathing — Cotton-gauze media flows more air than stock filters, supporting better throttle response and engine efficiency.

• Reusable & Long-Term Value — Washable and reusable design eliminates repeated filter replacements, saving money and reducing waste over the vehicle’s life.

• Strong Filtration & Engine Protection — Multi-layer filter structure effectively traps dust and contaminants while allowing high airflow.

• Easy, Bolt-In Upgrade — Simple drop-in installation — no tools or modifications needed.

• Durable Build & Warranty — Designed with robust materials and backed by a lifetime limited warranty, giving confidence for long-term use.

• Eco-Friendly Alternative — Replacing disposable paper filters with a reusable solution helps reduce waste from frequent filter changes.

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