How long is shipping for K&N Engineering?

Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.

How do I install the K&N Typhoon Performance Intake — Fits 2018-2021 Subaru WRX STI H4-2.5L?

Cold air intakes typically install in 30-60 minutes with basic hand tools. No tuning required for most plug-and-play kits.

How long is shipping for K&N Engineering?

Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.

How do I install the K&N Typhoon Performance Intake — Fits 2018-2021 Subaru WRX STI H4-2.5L?

Cold air intakes typically install in 30-60 minutes with basic hand tools. No tuning required for most plug-and-play kits.

How long is shipping for K&N Engineering?

Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.

How do I install the K&N Typhoon Performance Intake — Fits 2018-2021 Subaru WRX STI H4-2.5L?

Cold air intakes typically install in 30-60 minutes with basic hand tools. No tuning required for most plug-and-play kits.

How long is shipping for K&N Engineering?

Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.

How do I install the K&N Typhoon Performance Intake — Fits 2018-2021 Subaru WRX STI H4-2.5L?

Cold air intakes typically install in 30-60 minutes with basic hand tools. No tuning required for most plug-and-play kits.

How long is shipping for K&N Engineering?

Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.

How do I install the K&N Typhoon Performance Intake — Fits 2018-2021 Subaru WRX STI H4-2.5L?

Cold air intakes typically install in 30-60 minutes with basic hand tools. No tuning required for most plug-and-play kits.

K&N Engineering

K&N Typhoon Performance Intake — Fits 2018-2021 Subaru WRX STI H4-2.5L

Name: K&N Typhoon Performance Intake — Fits 2018-2021 Subaru WRX STI H4-2.5L
Brand: K&N Engineering
SKU: KNN69-8009TWR
Price: 299.99 USD
Availability: InStock

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K&N Engineering

K&N Typhoon Performance Intake — Fits 2018-2021 Subaru WRX STI H4-2.5L

SKU: KNN69-8009TWR

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About K&N Engineering K&N has been the world's leader in ...Read More

Price:

$299.99

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Car Wheel Size Chart

Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

225 = Tire width in mm
45 = Aspect ratio (height as % of width)
R17 = Rim diameter in inches

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Guaranteed Low Price

GGCRACING Discount

Product Details

Product Description

Part Numbers

Sizing & Fit

About K&N Engineering

K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.

Watch in action

K&N Typhoon Performance Intake for Subaru WRX STI

Experience a significant boost in horsepower and torque with the K&N Typhoon Performance Intake system, specifically engineered for the 2018-2021 Subaru WRX STI H4-2.5L. This cold air intake replaces your restrictive factory air box with a high-flow, mandrel-bent aluminum intake tube, ensuring maximum airflow to your engine. The result is improved throttle response, exhilarating acceleration, and a more aggressive engine sound.

Engineered for Optimal Performance

Guaranteed Horsepower & Torque Gains: Dyno-tested for proven performance increases.
High-Flow Air Filter: Features a washable, reusable oiled cotton filter media, designed for up to 100,000 miles between services.
Custom Heat Shield: Protects intake air from engine bay heat, ensuring cooler, denser air for combustion.
Easy Installation: Typically installs in 90 minutes or less with basic hand tools.
Durable Construction: Black powder-coated finish on the intake tube for lasting aesthetics and corrosion resistance.

Upgrade your Subaru WRX STI with K&N's legendary performance and feel the difference. Find this and more premium auto parts at GGCRACING.

Vehicle Fitment

Years	Make	Model	Trim
2018	Subaru	WRX STI	Type RA
2018-2021	Subaru	WRX STI	Base
2018-2021	Subaru	WRX STI	Limited
2019	Subaru	WRX STI	S209

Often bought with

Other popular K&N Engineering products customers consider together:

Product Details

Product Description

Part Numbers

Sizing & Fit

About K&N Engineering

Watch in action

K&N Typhoon Performance Intake for Subaru WRX STI

Engineered for Optimal Performance

Guaranteed Horsepower & Torque Gains: Dyno-tested for proven performance increases.
High-Flow Air Filter: Features a washable, reusable oiled cotton filter media, designed for up to 100,000 miles between services.
Custom Heat Shield: Protects intake air from engine bay heat, ensuring cooler, denser air for combustion.
Easy Installation: Typically installs in 90 minutes or less with basic hand tools.
Durable Construction: Black powder-coated finish on the intake tube for lasting aesthetics and corrosion resistance.

Upgrade your Subaru WRX STI with K&N's legendary performance and feel the difference. Find this and more premium auto parts at GGCRACING.

Vehicle Fitment

Years	Make	Model	Trim
2018	Subaru	WRX STI	Type RA
2018-2021	Subaru	WRX STI	Base
2018-2021	Subaru	WRX STI	Limited
2019	Subaru	WRX STI	S209

Often bought with

Other popular K&N Engineering products customers consider together:

Product Details

Product Description

About K&N Engineering

Watch in action

K&N Typhoon Performance Intake for Subaru WRX STI

Engineered for Optimal Performance

Guaranteed Horsepower & Torque Gains: Dyno-tested for proven performance increases.
High-Flow Air Filter: Features a washable, reusable oiled cotton filter media, designed for up to 100,000 miles between services.
Custom Heat Shield: Protects intake air from engine bay heat, ensuring cooler, denser air for combustion.
Easy Installation: Typically installs in 90 minutes or less with basic hand tools.
Durable Construction: Black powder-coated finish on the intake tube for lasting aesthetics and corrosion resistance.

Upgrade your Subaru WRX STI with K&N's legendary performance and feel the difference. Find this and more premium auto parts at GGCRACING.

Vehicle Fitment

Years	Make	Model	Trim
2018	Subaru	WRX STI	Type RA
2018-2021	Subaru	WRX STI	Base
2018-2021	Subaru	WRX STI	Limited
2019	Subaru	WRX STI	S209

Often bought with

Other popular K&N Engineering products customers consider together:

Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5

Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5

Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5

Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5

K&N Typhoon Performance Intake — Fits 2018-2021 Subaru WRX STI H4-2.5L

K&N Typhoon Performance Intake — Fits 2018-2021 Subaru WRX STI H4-2.5L

Car Wheel Size Chart

How to Read Tire Size

Product Details

About K&N Engineering

Watch in action

K&N Typhoon Performance Intake for Subaru WRX STI

Engineered for Optimal Performance

Vehicle Fitment

Often bought with

Product Details

About K&N Engineering

Watch in action

K&N Typhoon Performance Intake for Subaru WRX STI

Engineered for Optimal Performance

Vehicle Fitment

Often bought with

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Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5

Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5