HKS | Nano Cabin Filter | Honda Civic Type R | FK8/FL5 2.0T K20C1 | 2017+HKS specializes in aftermarket high performance parts and is perhaps the most well known aftermarket brand in the world. Formed in 1973, and named after the founders Hasegawa, Kitagawa, and Sigma, HKS began tuning engines and cars. Their vision was to tune and manufacture engine components that surpass OE Manufacturers. Nanofiber filters out most of fine particles and microbes due to very small space between individual fibres. A large surface area