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K&N high flow air filter
or street builds
All factory mounting points retained
BMW Z4 23i / 30i
1977-1981 E12 520 / 526
BMW S68 Short Block Assembly Service 745e K&N high flow air filter5150 AutoSport Short Block Build Service for BMW S68 Engines Please note that price is based on customer providing core. If you need help sourcing a core, please contact our sales team. When your BMW engine needs to be built right the first time, 5150 AutoSports Short Block Assembly Service delivers the precision, consistency, and experience demanded by high performance BMW builds. This service is performed in house by BMW focused engine builders
