Ok guys I'm new here. So I got a 13 civic r18z1. I'd like to hear an know about mods for performance. It's hard to find stuff online to read due to the car not being old or to invested in but I'm all for save the single cams. What can I do bolt on wise for my car an I'd really like to know about the exaust mods also because my head has the "header" cast to the head I belive then right to a cat. What can I do to work this all out ! Please help !