There are better parts for your car. You just need to know where to find them. Go and check out what he said, RedpepperRacing lets you know everything about your REX. DC makes a header for your car. other then that, you can use OEM honda parts, from Integras, Civic Wagons, and Preludes. Go and check out RedPepper. If you need any OEM honda Parts just let me know. If I dont have it I can get it.