i put a b18b w/b16 tranny into an 89 crx si. it has a stock exhaust manifold. I now want a aftermarket one. I know i need a two piece. But which one do i get. i want a dc. but do i get it for a 90 integra, or a 92-93 gsr. whats the difference between them anyway?

 

To ensure that the header length is the same as the stock manifold(where it matches up to your exhaust). Get a header to match the motor. '94-up integra.