K&N Engineering

K&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim S

K&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim S
K&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim S
K&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim S
K&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim S
K&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim S
K&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim S
K&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim S
K&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim S
K&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim S
K&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim S
K&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim S
K&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim S
K&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim S
K&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim S
K&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim S
K&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim S
K&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim S
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K&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim SK&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim SK&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim SK&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim SK&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim SK&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim SK&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim SK&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim SK&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim SK&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim SK&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim SK&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim SK&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim SK&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim SK&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim SK&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim SK&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim S
K&N Engineering

K&N HD-0818 Replacement Air Filter - 5.5in Top OD x 6in Base OD x 2.313in H — Fits Harley Davidson FLSS Softail Slim S

SKU: KNNHD-0818
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

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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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.

K&N HD-0818 High-Flow Replacement Air Filter for Harley Davidson

Enhance the performance and protect the engine of your Harley Davidson FLSS Softail Slim S with the K&N HD-0818 Replacement Air Filter. Engineered as a direct fit upgrade for your stock air filter element, this K&N filter is designed to provide a significant increase in airflow while maintaining superior filtration efficiency. Experience improved throttle response and horsepower, making every ride more exhilarating.

Superior Air Filtration and Performance

  • Increased Airflow: K&N's signature high-flow design reduces restriction, allowing your engine to breathe easier.
  • Excellent Engine Protection: Advanced filtration media effectively captures contaminants, safeguarding your engine's internal components.
  • Washable & Reusable: Designed for long-term use, simply clean and re-oil for continued optimal performance, saving you money on replacements.
  • Direct Fit Application: Specifically engineered for 2016-2017 Harley-Davidson FLSS Softail Slim S models, ensuring a hassle-free installation.
  • Durable Construction: Built with high-quality materials to withstand the demands of motorcycle riding.

Invest in a K&N air filter from GGCRACING to give your Harley Davidson the clean air and performance advantage it deserves.

Vehicle Fitment

Years Make Model Trim
2016-2017 Harley-Davidson FLSS Softail Slim S Base

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.

K&N HD-0818 High-Flow Replacement Air Filter for Harley Davidson

Enhance the performance and protect the engine of your Harley Davidson FLSS Softail Slim S with the K&N HD-0818 Replacement Air Filter. Engineered as a direct fit upgrade for your stock air filter element, this K&N filter is designed to provide a significant increase in airflow while maintaining superior filtration efficiency. Experience improved throttle response and horsepower, making every ride more exhilarating.

Superior Air Filtration and Performance

  • Increased Airflow: K&N's signature high-flow design reduces restriction, allowing your engine to breathe easier.
  • Excellent Engine Protection: Advanced filtration media effectively captures contaminants, safeguarding your engine's internal components.
  • Washable & Reusable: Designed for long-term use, simply clean and re-oil for continued optimal performance, saving you money on replacements.
  • Direct Fit Application: Specifically engineered for 2016-2017 Harley-Davidson FLSS Softail Slim S models, ensuring a hassle-free installation.
  • Durable Construction: Built with high-quality materials to withstand the demands of motorcycle riding.

Invest in a K&N air filter from GGCRACING to give your Harley Davidson the clean air and performance advantage it deserves.

Vehicle Fitment

Years Make Model Trim
2016-2017 Harley-Davidson FLSS Softail Slim S Base

Product Details

Product Description

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.

K&N HD-0818 High-Flow Replacement Air Filter for Harley Davidson

Enhance the performance and protect the engine of your Harley Davidson FLSS Softail Slim S with the K&N HD-0818 Replacement Air Filter. Engineered as a direct fit upgrade for your stock air filter element, this K&N filter is designed to provide a significant increase in airflow while maintaining superior filtration efficiency. Experience improved throttle response and horsepower, making every ride more exhilarating.

Superior Air Filtration and Performance

  • Increased Airflow: K&N's signature high-flow design reduces restriction, allowing your engine to breathe easier.
  • Excellent Engine Protection: Advanced filtration media effectively captures contaminants, safeguarding your engine's internal components.
  • Washable & Reusable: Designed for long-term use, simply clean and re-oil for continued optimal performance, saving you money on replacements.
  • Direct Fit Application: Specifically engineered for 2016-2017 Harley-Davidson FLSS Softail Slim S models, ensuring a hassle-free installation.
  • Durable Construction: Built with high-quality materials to withstand the demands of motorcycle riding.

Invest in a K&N air filter from GGCRACING to give your Harley Davidson the clean air and performance advantage it deserves.

Vehicle Fitment

Years Make Model Trim
2016-2017 Harley-Davidson FLSS Softail Slim S Base

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