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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
On Sale!
Fits on:
02-05 Honda Civic Si
02-05 Honda Civic Si
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AHS6515S
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DC Sports Headers - 4-2-1 One Piece (Polished Stainless Steel)
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Price: $477.25
Sale Price: $381.80 / Each 
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On Sale!
Fits on:
02-05 Honda Civic Si
02-05 Honda Civic Si
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AHC6515
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DC Sports Headers - 4-2-1 One Piece (Ceramic)
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Price: $364.59
Sale Price: $291.67 / Each
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On Sale!
Fits on:
02-05 Honda Civic Si (K20A2)
02-05 Honda Civic Si (K20A2)
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HHR6515
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DC Sports Headers - 4-2-1 One Piece Race (Ceramic)
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Price: $412.31
Sale Price: $329.85 / Each
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Fits on:
2002-2005 Honda Civic Si
2002-2005 Honda Civic Si
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1067000004
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Comptech Race Header
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Price: $995.00 / Each
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Fits on:
02-05 Civic SI
02-05 Civic SI
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HDS-HC02SI
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Option Racing Headers - Stainless Steel
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Price: $180.00 / Each
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On Sale!
Fits on:
02-05 Civic SI
02-05 Civic SI
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BWHD-0300
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Blackworks Racing Header - K20 DC5/EP3, Tri-Y
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Price: $795.00
Sale Price: $675.75 / Each
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Fits on:
01-Up Honda Civic Si
01-Up Honda Civic Si
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HCH15009-C
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Kamikaze Headers - 4-1 High Luster Ceramic Coating
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Price: $365.00 / Each
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Fits on:
01-Up Honda Civic Si
01-Up Honda Civic Si
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HCH15009-BC
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Kamikaze Headers - 4-1 High Temperature Black Coating
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Price: $320.00 / Each
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Fits on:
02-05 Civic Si
02-05 Civic Si
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14-1005
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Design Motorsports Engineering Headers
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Price: $276.25 / Each
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» NEWS
Headers on Andy's Auto Sport TV!
Check out this episode of Andy's Auto Sport TV where we explain all the basics about headers. In the video, we explain why headers open up horsepower gains and explain the difference between different types of headers, such as stainless steel headers, ceramic headers, painted headers, and chrome headers. Featured brands of headers in the video include DC Sports headers, Gibson headers, and Doug Thorley headers. We also show how to install headers and then show the resulting horsepower gains with our dyno run results!
If you want to find an Andy's coupon code to use to buy your Honda Civic SI Headers, then go to our Facebook page and click the "Like" button at the top!
Andy's Auto Sport on Facebook
» 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.
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