2002 Civic Si w/ K20a3 HELP!!!
So I'm new to this ephatch and Honda tuning world. Ive had this 2002 Civic Si Hatchback for a while as a beater and am now wanting to upgrade it. It has a K20a3 in it and I'm just wanting to add a little HP and exterior mods to make it more fun to drive since I will be daily driving this while my Challenger is being built. It does have the 5 speed in it. I need help and don't know where to start other thank new motor and tranny mounts cuz its shaking like crazy at crusing speeds.