well im looking into a DOHC ZC for my 89 crx si only thing stopping me is the lack of aftermarket suppliers. Ive read that you can either port the si exhaust manifold or buy a header. Problem is in one place they said to use 88-91 crx aftermarket headers another says 89 integra. one more question, when buying a set of underdrive pulleys for the DOHC ZC would the set designed for the 89 Integra work? if not anyone know what would? thanks for the help

 

86-89 integra header,not sure on pulleys

 

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