header for honda civic si hello i am looking to slightly increase the performance of my honda civic si i was wondering if anyone could suggest upgrades that were not too drastic i thought that one of the easiest upgrades would be a new header does anyone know what kind of increase that the header would give me i think i would check with jackson racing for the part are there any other comparines would make honda parts are there any other small changes that can be easily made and won t screw up the car things like new injectors new fuel injection chip etc i would welcome any suggestions of small changes that would make a difference i don t really want to change the cam etc because i have heard that it would be much harder on the engine e mail relpies prefered please and i will post a summary of all the replies thanks for any help you may have to offer jeff smith jsmith cs dal ca dalhousie university halifax ns
