What else do I need to buy after purchasing a S300?? I need a ecu jumper?? Is this the right thing-(OBD2a to OBD1 ECU Conversion Harness). and what else?? need some help on this, I have a greddy turbo kit with a e-manage right now trying to upgrade..need some help here!!

 

ECU
Conversion Harness
Hondata then your good to go.

 

If your car is 96+ then you need the obd1-obd2 conversion harness.

Drop us a PM if you have any further questions.... We are authorized hondata dealers

 

so if my car is complete stock with teh cold air. after i install it.... will i inprove HP a lot?(with 400cc injectors)

 

^^If your car is stock there is no point in getting/using 400cc Injectors... Unless you're changing for Saturated to Peak & Hold or vis versa, then you'd also need a Resistor Box for the Peak & Hold..

You're stock injectors are well equipted to handle your stock engine..