2006-2011 Honda Civic SI Exhaust Header Gasket
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Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
2006-2011 Honda Civic SI Exhaust Header Gasket
Direct-fit replacement gasket for your SI header, made to seal factory connection points without modification. Designed for hassle-free installation when you're swapping headers or replacing a worn gasket. Fits the factory mounting surface with zero guesswork.
Key Features
- Factory-matched seal surface - Installs at OEM connection points with zero modifications needed.
- Drop-in replacement - Works with both stock and aftermarket headers designed for your SI.
- Single gasket - One piece, ready to install between header and manifold.
Specs
- Hard panel construction
- Single gasket assembly
- Designed for 2006-2011 Honda Civic SI exhaust applications
What's Included
- Exhaust header gasket (qty 1)
Frequently Asked Questions
Do I need any hardware to install this, or does it bolt straight up?
The gasket itself installs between the header and manifold at the factory bolt holes — your existing header bolts will secure it. Bring the hardware you already have; this gasket is the seal piece only.
Can I reuse this gasket if I'm swapping headers later, or is it one-time only?
Exhaust gaskets should be replaced each time you break the seal. Once you bolt the header on and heat-cycle it, the gasket compresses and won't seal again — grab a fresh one for your next header swap.
Will this work with an aftermarket header, or only the factory manifold?
This gasket seals at the factory mounting surface. Any aftermarket header designed to bolt to your SI's stock connection points will work fine with this gasket — just confirm the header is SI-compatible first.
Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.