ehh if ur not planning on spending whole lot of money just keep ur stock header, honda has good engineers at work and they make great stock parts, designed for total performance accross the bandwidth. just my opinion though if u really want to spend ur money there are tons of options out there, but dont expect to get much of a performance gain, cuz ur probably just gonna get a louder sounding exhaust system, by moving to a different header and wont see performance gains.