it's a "HEADER" fellas...sorry, just a little thing that annoys me. we only have one header, not headers like a v6,v8,etc.. about chikara, those things are complete sh!t. dont waste your money. get DC or GReddy for a header. you wont notice much of a power increase, just better flow and responsiveness. a header with full catback will decrease some of your low end torque.