What does a header do? It allows your engine to expell gases efficiently. The flow from the engine comes through the headers, to the catalytic converter and out your exhaust. The better we make the process of moving the gases out, the better your Honda Fit performs. A header can easily bump up the power and torque the car produces.

An efficient header allows hot gases to move quickly, allowing for more power.

Two good articles on Headers can be found on Team-Integra:

Header Choices?

Which ever way you go with a header, you have a number of choices: OEM Headers, 4-2-1, 4-1 and racing headers. Normally 4-1 header produce power higher in the RPM band, while 4-2-1 are more for a lower bump in power.

4-2-1 Headers / 4-1 Headers:

Borla Exhaust Performance Header

DC Sports Headers

Choose the right Header that will work with the exhaust system you choose to make an efficient system of power production!

Honda Fit Links

Honda Fit Cold Air Intakes - K&N

HKS Hi Power Axleback Exhaust for HONDA Fit

Honda Fit Eibach Pro Kit Lowering Springs

JDM Red-H Rear Emblem For Honda FIT

JDM OEM Style Fog Lights - 06-07 Honda Fit