Customer Support
Learning Center
Checkout
Welcome to the Honda Civic SI Headers Center at Andy's Auto Sport!
At Andy's Auto Sport, we have a huge variety of Honda Civic SI headers to ensure that you have every header option available to you. We go out of our way to carry every major line of Honda Civic SI headers, so that whether you are looking for long tube Honda Civic SI headers or custom exhaust headers or anything in between, we've got it for you. Andy's Auto Sport is the ultimate shopping destination for your Honda Civic SI header needs!
» CHOOSE YOUR MODEL
» DID YOU KNOW?
Civic SI Header is the term used to describe the aftermarket product that replaces the factory exhaust manifold. Headers are normally designed to be less restrictive than the factory exhaust manifolds that they replace, thereby generating more horsepower.
Headers are considered part of the exhaust system of the vehicle. Right after the incoming air and fuel combust, the result exhaust is push through the headers and out the exhaust. The headers are often connected to the catalytic converter, which is connected to the muffler and exhaust tip, so the headers are the "front" of the exhaust system.
Some of the popular brands of headers that you'll find are: DC Sports, Hedman, Hooker, Doug Thorley, Pacesetter, and Flowtech, among others.
We get asked a lot if you can buy Civic SI headers but still leave the stock catalytic converter in place. The answer is yes in almost every case, as the Civic SI headers are still designed with flanges in most cases that will mount right up to the existing factory parts.
Headers are considered part of the exhaust system of the vehicle. Right after the incoming air and fuel combust, the result exhaust is push through the headers and out the exhaust. The headers are often connected to the catalytic converter, which is connected to the muffler and exhaust tip, so the headers are the "front" of the exhaust system.
Some of the popular brands of headers that you'll find are: DC Sports, Hedman, Hooker, Doug Thorley, Pacesetter, and Flowtech, among others.
We get asked a lot if you can buy Civic SI headers but still leave the stock catalytic converter in place. The answer is yes in almost every case, as the Civic SI headers are still designed with flanges in most cases that will mount right up to the existing factory parts.
» MODEL YEARS COVERED
2002 Civic SI
2003 Civic SI
2004 Civic SI
2005 Civic SI
» AVAILABLE BRANDS
» POPULAR STYLES
Civic SI Chrome Headers
Civic SI Shorty Headers
Civic SI Long Tube Headers
Civic SI Ceramic Headers
Civic SI 3-1 Headers
Civic SI 4-2-1 Headers
Civic SI 4-1 Headers
» SITE CENTERS
» LINKS
» POWERED BY
