K&N Air Filter

2016–2017 Scion iA / Toyota Yaris iA 1.5L

33-5038

Overview:

The K&N Air Filter 33-5038 is a high-performance drop-in replacement designed specifically for the 2016 and 2017 Scion iA and Toyota Yaris iA equipped with the 1.5L engine. Engineered to enhance your vehicle’s horsepower and acceleration, this air filter improves throttle response and can contribute to better fuel economy. Ideal for enthusiasts and everyday drivers alike, it offers a reliable upgrade over the factory paper air filter without compromising engine protection or vehicle warranty.

Built to last, this washable and reusable air filter provides long-term value by eliminating the need for frequent replacements. It’s a smart choice for drivers seeking improved engine performance combined with durability and environmental responsibility.

Key Features:

Designed with advanced filtration technology, the K&N Air Filter 33-5038 delivers superior airflow and engine protection. Key features include:

• Washable and reusable design for long-lasting performance
• Increases horsepower and acceleration by allowing higher airflow
• Improves throttle response and can enhance fuel economy
• Lasts up to 50,000 miles before cleaning is required, depending on driving conditions
• Will not void your vehicle’s factory warranty
• Emissions legal in all 50 US states
• Constructed with multiple layers of oiled cotton gauze for optimal filtration
• Environmentally friendly alternative to disposable paper filters
• Compatible with vehicle electronics and original equipment airbox
• Backed by K&N’s Million Mile Limited Warranty

Construction & Design:

The K&N Air Filter features a unique multi-layer cotton gauze media sandwiched between two epoxy-coated aluminum wire mesh screens. This pleated cotton gauze is specially oiled to create a tacky surface that traps dirt and contaminants while allowing maximum airflow. The design balances high filtration efficiency with unrestricted air passage, ensuring your engine receives clean air without sacrificing performance.

Handmade in the USA and the United Kingdom using premium materials, this air filter is engineered to withstand harsh conditions and maintain its effectiveness over the life of your vehicle. The durable construction also supports repeated washing and re-oiling without degrading filtration quality.

Performance & Sound

By increasing airflow to the engine, the K&N Air Filter can add 1 to 4 horsepower, enhancing acceleration and throttle response. While it does not alter the exhaust note significantly, the improved breathing capability helps your engine perform more efficiently under various driving conditions.

Installation & Fitment:

The K&N Air Filter 33-5038 is a direct replacement for the factory air filter in the 2016–2017 Scion iA and Toyota Yaris iA 1.5L models. Installation is straightforward and requires no modifications or special tools. Simply remove the stock air filter and insert the K&N filter into the original airbox for a secure, perfect fit.

What's Included:

• One K&N High-Flow Air Filter (Part #33-5038)
• Installation instructions

Ideal For:

This air filter is perfect for Scion iA and Toyota Yaris iA owners who want to improve their vehicle’s performance and fuel efficiency without compromising engine protection or emissions compliance. It suits daily drivers, enthusiasts, and anyone looking for a cost-effective, long-lasting air filtration solution.

Emissions Note

The K&N Air Filter 33-5038 is emissions legal in all 50 US states, ensuring compliance with environmental regulations and peace of mind for street-driven vehicles.