1988

Uni Filter - Air Filter Element fits '86-'89 80” Evolution Big Twin Models (OEM #29259-86) Features: Constructed of a unique, open-cell polyurethane material that allows maximum airflow while still providing superior filtration Made in the...

K&N - Replacement High-Flow Air Filter fits '88-'03 Sportster Model (OEM #29331-96, 29036-88A, 29036-88B) Features: Constructed of a unique, open-cell polyurethane material that allows maximum airflow while still providing superior...