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Impact and abrasion-resistant
Made in the U
deep reach cap-style that is engineered for a perfect fit
petroleum-based filter oils contain toxic ingredients — and the solvents required to clean them are equally harmful
K&N Replacement Air Filter DUC ST2 / ST3 / ST4 (97-'07) SIZE_114 Links Impact and abrasion-resistantK&N's high flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle. Features: Designed to provide increased horsepower and torque. Pleated media provides a large filtration area offering long service intervals. Multiple
