I have a 1991 honda crx hf and I upgraded the motor to a D15b VTEC. What distributor cap and rotary button do I get for this motor or do I have to get the distributor rewired? Also the cold air intake that I got for this engine is too big. The intake on the motor is 2 1/2 inches round and the intake I got is 3 inches round. Does anyone know what motor I need to look up at advance to get the correct size fitting intake?

 

92' civic ex d16z6 for cap and rotor

you need a coupler reducer,check ebay for cheapest prices